Rex

A Rex is an enemy that first appeared in Super Mario World. They are deep-blue dinosaur-like creatures with wings that can't fly.

Games

Super Mario World

In Super Mario World, the Rexes were one of the first enemies encountered. It takes two stomps to their head defeat them; the first one just reduces their height and increases their running speed.

Mario & Luigi: Superstar Saga

In Mario & Luigi: Superstar Saga, they are found on Hoohoo Mountain with Beanies and Dry Bones. A jump will decrease their height, and a second will decrease it even more, making their charge attack easier to dodge. At full height, however, they automatically hit.

Rexes have a Shroobified variation that later appears in Mario & Luigi: Partners in Time.

Super Princess Peach

In Super Princess Peach, they created their first appearance in Fury Volcano. Rex will be flipped over if Peach stomps on their head twice. Swinging Perry at one will take it outright, regardless of where on their body the creatures get hit. They had their own sub-species called Sad Rex.

Rex
	LVL	6	HP	16	POW	22	DEF	24	SPEED	{{{spd}}}
	EXP	8	COINS	3	Fire	Heal	Thunder	Normal	Jump	Normal
	Hammer?	Normal	Hand?	Normal	Stun?	60%	Burn?	0%	Stat Down?	100%
Item drop					Location(s)
•None - 0% •None - 0%					Hoohoo Mountain
Notes Parentheses indicates statistics in Japanese version. Numbers and words in gray indicate coding unavailable in normal gameplay.

Rex
	LVL	6	HP	16	POW	22	DEF	24	SPEED	{{{spd}}}
	EXP	8	COINS	3	Fire	Heal	Thunder	Normal	Jump	Normal
	Hammer?	Normal	Hand?	Normal	Stun?	60%	Burn?	0%	Stat Down?	100%
Item drop					Location(s)
•None - 0% •None - 0%					Hoohoo Mountain
Notes Parentheses indicates statistics in Japanese version. Numbers and words in gray indicate coding unavailable in normal gameplay.

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Characters Protagonists Mario • Luigi • Princess Peach • Prince Peasley • Captain Goomba** (Gold**) • Captain Shy Guy** • Captain Boo** (Gold**) • Captain Koopa Troopa** (Gold**) Antagonists Cackletta/Bowletta • Fawful • Popple • Bowser/Rookie Other Characters Advisor • Beanbean Knight • Bink • Blablanadon • Bloat • Boddle • Boddle's Assistant • Border Bros. • Bowser • Bubbles • Chuckleroot • Cork and Cask • Fava • Fire and Thunder Gods • Guffawha Monster • Hammerhead Bros. • Harhall • Hermie III • Hoohoo Civilization • Jellyfish Sisters • Lady Lima • Mine Cart Owner • Peach-bot • Piper • Professor Elvin Gadd • Psycho Kamek* • Queen Bean • Soybean Civilization • Spangle • Starfy* • Starshade Bros. • Thwomp • Toad • Dr. Toadley** • Toadsworth • Tolstar • Yoshi Fan Club Species Beanish • Beanlet • Designbomb • Hoohooligan • Oho Jee • Toad • Winkle • Yoshi Locations Locations Beanbean Castle • Beanbean Castle Sewers • Beanbean Castle Town • Beanbean International Airport • Beanbean Kingdom • Bowser's Castle • Château de Chucklehuck • Chucklehuck Woods • Fire Palace • Guffawha Ruins • Gwarhar Lagoon • Harhall's Studio • Hoohoo Mountain • Hoohoo Village • Joke's End • Koopa Cruiser • Little Fungitown • Mario's House • Mushroom Kingdom • Oho Oasis • Oho Ocean • Oho Ocean Seabed • Pipe House • Relaxation Room • S.S. Chuckola • Starbeans Café • Stardust Fields • Teehee Valley • Thunder Palace • Winkle Colosseum • Woohoo Hooniversity • Yoshi Theater Bosses Bosses Birdo • Bowletta⋆ • Bowser⋆ • Cackletta⋆ • Cackletta's Soul⋆ • Chuckolator⋆ • Corporal Paraplonk⋆⋆ • Dragohoho⋆ • Fawful • Hermie III⋆ • Hoohooros⋆ • Iggy Koopa⋆ • Jojora⋆ • Jojora's Friends⋆ • Larry Koopa • Lemmy Koopa • Ludwig von Koopa • Mom Piranha⋆ • Morton Koopa Jr. • Piranha Bean • Popple • Private Goomp⋆⋆ • Queen Bean⋆ • Rookie⋆ • Roy Koopa • Sergeant Guy⋆⋆ • Tolstar⋆ • Trunkle⋆ • Wendy O. Koopa • Wiggler⋆ Enemies Enemies Ankoopa • Anuboo • Bandit⋆⋆ • Beanie • Belly Blech⋆ • Big Boo⋆⋆ • Big Tail Goomba⋆⋆ • Bill Blaster⋆ • Blooper⋆ • Bob-omb • Bomb Boo⋆⋆ • Boo • Beanerang Bro • Boomerang Bro⋆⋆ • Broozer⋆⋆ • Buzzy Beetle⋆⋆ • Chain Chomp⋆⋆ • Chargin' Chuck⋆⋆ • Cheep Cheep* • Chomp Bro⋆ • Chuck Guy • Chuckorok⋆ • Clumph • Dry Bones⋆⋆⋆ • Eeker⋆ • Elite Dry Bones⋆ • Elite Gritty Goomba⋆ • Elite Limbo Bro • Elite Pestnut • Elite Troopea • Fake Bowser⋆ • Fighter Fly⋆ • Fire Bro⋆⋆ • Flaret⋆ • Fly Guy⋆⋆ • Fuzzbush • Fuzzy • Glurp⋆ • Gold Beanie • Goomba • Goomba Tower⋆⋆ • Goomdiver⋆ • Green Magikoopa⋆⋆ • Gritty Goomba • Gunner Guy⋆ • Hammer Bro • Ice Bro⋆⋆ • Ice Snifit • Koopa Paratroopa⋆⋆ • Koopa Troopa⋆⋆ • Lakipea • Lakitu⋆⋆ • Laser Snifit⋆ • Limbo Bro • Magikoopa • Malibut⋆ • Mecha-Blooper⋆ • Mecha-Chomp* • Mechakoopa** • Mechawful⋆⋆ • Oucher Glass⋆ • Para-Beetle⋆⋆ • Parabeanie • Paragoomba⋆⋆ • Paratroopea • Pestnut • Piranha Plant⋆ • Pokey⋆⋆ • Puffer-Cheep* • Red Magikoopa⋆⋆ • Rex • Roto-disc⋆ • Sand Cheep⋆ • Scaratroopea • Sharkbone⋆ • Sharpea • Shy Guy⋆⋆ • Sniper Bill⋆ • Spike⋆⋆ • Spiky Snifit⋆ • Spiny⋆⋆⋆ • Stalking Piranha Plant⋆⋆ • Starkiss • Super Fly⋆ • Sworm⋆ • Tail Boo⋆⋆ • Tanoomba • Time Bob-omb⋆ • Troopea • Turtle⋆ • Virus⋆ • White Magikoopa⋆⋆ • Yo Bro Items Regular Items 1-Up Mushroom • 1-Up Super • 5 Gold Coin • Beanbean coin • Coin • Golden Mushroom • Green Pepper • Max Mushroom • Max Nut • Max Syrup • Mushroom • Nut • Red Pepper • Refreshing Herb • Super Mushroom • Super Nut • Super Syrup • Syrup • Ultra Mushroom • Ultra Nut • Ultra Syrup Key Items Bean Fruit • Beanbean Brooch • Beanbean Map • Beanstar • Beanstone • Chuckola Fruit • Chuckola Reserve • Crabbie Grass • Fake Beanstar • Fire Statue • Game Boy Horror SP • Hoohoo Spirit • Invincishroom • Mask • Membership Card • Neon Egg • Peach's Extra Dress • Peasley's Rose • Pearl Bean • Precious Item • Red and Green Goblets • Secret Scroll 1 • Secret Scroll 2 • Suitcase • Winkle Card Bean Juice Chuckle Blend • Chuckoccino • Hoohoo Blend • Hoolumbian • Teehee Blend • Teeheespresso • Woohoo Blend Special Items Bonus Ring • Cobalt Necktie • Excite Spring • Game Boy Horror SP • Great Force • Greed Wallet • Power Grip* • Secret Specs** Blocks ! Block • ? Block • Bros. Block • Command Block • Hidden Block • Hoohoo Block • L Block • M Block • Rally Block • Random Block • Recovery Block • Save Album • Simu-Block • Spin Block Other Axe • Badge • Bean • Bean Fever • Bike Pad • Black Rock • Boo Statue • Brown Rock • Button • Candy ring • Mine Cart • Chuckola Cola • Clothing • Conductor • Ghost Gown • Gray Rock • Headgear • Koopa Clown Car • Poltergust 3000 • Pressure Plate • Region Map* • Rolling Bar Defense System • Spiky Stardust Defense System • Super Poltergust 3001 • Toad Express • Torch • Wall Face • Waterspout • Watering Hole • Yellow Pipe Moves Techniques Bounce Bros. • Bros. Attack • Chopper Bros. • Cyclone Bros. • Fire Bros. • Hammer • Firebrand • Fire Tickle • Flee • High Jump • Jump • Knockback Bros. • Luigi Dunk • Mini-Mario • Pump Mario • Spin Jump • Splash Bros. • Swing Bros. • Thunder Bros. • Thunderhand • Thunder Tickle Captain Commands** Deny • Rally • Chance • Play Dead • Lightning • Parry • Pass the Bob-omb • Thwomp Thump • Clash of Captains • Call for Backup • Sneak Attack • Shell Shock Miscellaneous Mini-games Border Jump • Mysterious Mine Carts • Star 'Stache Smash • Barrel • Chuckola Bounce • Surfing Minigame • Splart Stats Bros. Point • Defense • Experience Point • Heart Point • Level up • Power • Speed • Spirit⋆⋆ • Stache⋆ Status Burn • Charred • DEF-Down • DEF-Up • Dizzy • Heavy G • Light G • Poison • SPD-Down • Trip Other Gallery • Bestiary *-Exclusive in Mario & Luigi: Superstar Saga • **-Exclusive in Mario & Luigi: Superstar Saga + Bowser's Minions • ⋆-Enemy, boss, or stat exclusive to the main game. • ⋆⋆-Enemy, boss, or stat exclusive to Minion Quest: The Search for Bowser. • ⋆⋆⋆-Enemy variants differ in Mario & Luigi: Superstar Saga + Bowser's Minions. Characters Protagonists Mario • Luigi • Baby Mario • Baby Luigi Antagonists Elder Princess Shroob • Princess Shroob Other Characters Baby Peach • Dr. Toad • Fawful • Gramma Red and Gramma Green • Hollijolli Mayor • Kylie Koopa • Monty Mole • Mr. Thwomp • Princess Peach • Professor Elvin Gadd (past) • Star Gate • Stuffwell • Thwomp Bros. • Thwomp Elevator • Toad • Toads • Toadbert • Toadiko • Toadsworth • Toadsworth the Younger • Yoob • Yoshi • Yoshis Locations Locations Baby Bowser's Castle • Fawful's Bean 'n' Badge • Gramma's Place • Gritzy Caves • Gritzy Desert • Hollijolli Village • Koopaseum • Monty Mart • Princess Peach's Castle • Princess Peach's Castle Dungeon • Princess Peach's room • Shroob Castle • Shroob Mother Ship • Shroob Planet • Shroom Shop • Star Hill • Star Shrine • Thwomp Caverns • Thwomp Volcano • Toad Town • Toadwood Forest • Vim Factory • Yoob's Belly • Yoshi's Island Bosses Bosses Baby Bowser • Bowser • Commander Shroob • Elder Princess Shroob • Elder Shrooboid • Hammer Bros. • Junior Shrooboid • Kamek • Mrs. Thwomp • Petey Piranha • Princess Shroob • Shrooboid Brat • Shrowser • Sunnycide • Swiggler Enemies Enemies Blazing Shroob • Bob-omb • Boo • Boo Guy • Boom Guy • Bully • Coconutter • Dark Boo • Dr. Shroob • Dry Bones • Elasto-Piranha • Elite Boom Guy • Fly Guy • Ghoul Guy • Gnarantula • Gold Koopeleon • Goomba • Guardian Shroob • Handfake • Intern Shroob • Koopeleon • Lakitufo • Lethal Bob-omb • Love Bubble • Micro Goomba • Pidgit • Piranha Planet • Pokey • RC Shroober • Red Coconutter • Shroid • Shroob • Shroob Chomp • Shrooba Diver • Shrooblet • Shroob-omb • Shroob Rex • Shroob UFO • Shroobsworth • Skellokey • Snifaro • Snoozorb • Soul Bubble • Spiny Shroopa • Support Shroob • Tanoomba • Tashrooba • Thwack • Thwack Totem • Wonder Thwack Items Consumables 1-Up Mushroom • 1-Up Super • 10 Gold Coin • 20 Coin • 5 Gold Coin • Bean • Coin • Blue Pepper • Green Pepper • Max Mushroom • Mushroom • Mushroom Drop • Red Pepper • Refreshing Herb • Super Mushroom • Super Drop • Ultra Mushroom • Ultra Drop Blocks 4-Bros. Random Block • Adult Shine Block • Aurora Block • Block • Command Block • Control Block • L Block • Laser Block • M Block • Recovery Block • Save Album • Simu-Block • Small Shine Block • Warp Block Bros. Items Bros. Flower • Cannonballer • Copy Flower • Green Shell • Ice Flower • Mix Flower • Pocket Chomp • Red Shell • Smash Egg • Trampoline Other Blue switch • Cobalt Star • Chomp Rock • DS Time Radar • E. Gadd's Time Machine • Fireball • Hydrogush 4000 • Ice Ball • Koopa Cannon • Koopa Clown Car • Koopa Cruiser • Shroob Blaster • Shroob Missile • Shroob Mushroom • Shroob UFO • Time hole • Toadbert's Drawing • Treasure chest • Warp Pipe • Whirlwind • Yellow switch Miscellaneous Stats Defense • Experience Point • Heart Point • Power • Speed • Stache Status Burn • DEF-Down • DEF-Up • Dizzy • Level up • Poison • POW-Down • POW-Up • SPD-Down • SPD-Up • Trip Moves Baby Cakes • Baby Drill • Baby Pump • Baby Spin • Baby Toss • Bros. Ball • Flee • Hammer • Jump • Piggyback Jump • Spin Jump Other Gallery Characters Princess Peach • Perry • Mario • Luigi • Toad • Toadsworth Peach's Vibes Joy • Rage • Gloom • Calm Perry's Forms Bowlbrella • Chargebrella • Dashbrella • Floatbrella • Poundbrella • Slidebrella • Subrella Worlds Ladida Plains • Hoo's Wood • Shriek Mansion • Fury Volcano • Wavy Beach • Gleam Glacier • Giddy Sky • Bowser's Villa Bosses Boss P. Plant • Hoo • King Boo • Wiggler • Gooper Blooper • Blizzaurus • Giant Kamek • Army Hammer Bro • Bowser Enemies Amazing Flyin' Hammer Brother · Calm Amazing Flyin' Hammer Brother • Banzai Bill · Mad Banzai Bill • Big Boo · Mad Big Boo • Big Chain Chomp • Blooper · Glad Blooper • Blurp · Mad Blurp • Bob-omb · Glad Bob-omb • Boo · Mad Boo • Boo Man Bluff • Bullet Bill · Mad Bullet Bill • Cannon · Calm Cannon • Chain Chomp · Calm Chain Chomp • Cheep Cheep · Sad Cheep Cheep • Dry Bones · Sad Dry Bones • Fang · Glad Fang • Fishing Boo · Calm Fishing Boo • Goomba · Mad Goomba · Sad Goomba • Green Koopa Troopa · Mad Green Koopa • Hammer Bro · Calm Hammer Bro • Hothead • Lakitu · Calm Lakitu • Lava Bubble • Lava Bubble (blue) . Lil' Sparky • Mecha-Spike Top · Mad Mecha-Spike Top • Micro Goomba • Nipper Plant · Sad Nipper Plant • Parabomb · Glad Parabomb • Paragoomba · Sad Paragoomba • Paratroopa · Mad Green Paratroopa • Piranha Plant · Glad Piranha Plant • Pokey · Mad Pokey • Ptooie · Glad Ptooie • Raven · Sad Raven • Red Koopa Troopa · Glad Red Koopa • Red Paragoomba · Mad Red Paragoomba • Red Paratroopa · Glad Red Paratroopa • Rex · Sad Rex • Spike · Mad Spike • Spiny · Sad Spiny • Starfish • Thwomp • Torpedo Ted · Glad Torpedo Ted • Urchin • Volcano Plant · Calm Volcano Plant • Walruss • Yellow Cloud Characters Protagonists Mario • Princess Peach • Luigi • Yoshis Antagonists Bowser • Iggy Koopa • Morton Koopa Jr. • Lemmy Koopa • Larry Koopa • Wendy O. Koopa • Roy Koopa • Ludwig von Koopa Worlds Yoshi's Island Yoshi's House • Yoshi's Island 1 • Yoshi's Island 2 • Yoshi's Island 3 • Yoshi's Island 4 • Yellow Switch Palace • Iggy's Castle Donut Plains Donut Plains 1 • Donut Plains 2 • Donut Plains 3 • Donut Plains 4 • Donut Secret 1 • Donut Secret House • Donut Secret 2 • Top Secret Area • Donut Ghost House • Green Switch Palace • Morton's Castle Vanilla Dome Vanilla Dome 1 • Vanilla Dome 2 • Vanilla Dome 3 • Vanilla Dome 4 • Vanilla Secret 1 • Vanilla Secret 2 • Vanilla Secret 3 • Vanilla Ghost House • Vanilla Fortress • Red Switch Palace • Lemmy's Castle Twin Bridges Cheese Bridge Area • Soda Lake • Cookie Mountain • Butter Bridge 1 • Butter Bridge 2 • Ludwig's Castle Forest of Illusion Forest of Illusion 1 • Forest of Illusion 2 • Forest of Illusion 3 • Forest of Illusion 4 • Forest Ghost House • Forest Secret Area • Forest Fortress • Blue Switch Palace • Roy's Castle Chocolate Island Chocolate Island 1 • Chocolate Island 2 • Chocolate Island 3 • Chocolate Island 4 • Chocolate Island 5 • Choco-Ghost House • Chocolate Secret • Chocolate Fortress • Wendy's Castle Valley of Bowser Sunken Ghost Ship • Valley of Bowser 1 • Valley of Bowser 2 • Valley of Bowser 3 • Valley of Bowser 4 • Valley Fortress • Valley Ghost House • Larry's Castle • Back Door • Front Door Star World Star World 1 • Star World 2 • Star World 3 • Star World 4 • Star World 5 Special World Gnarly • Tubular • Way Cool • Awesome • Groovy • Mondo • Outrageous • Funky Bosses Major Bosses Bowser • Iggy Koopa • Morton Koopa Jr. • Lemmy Koopa • Larry Koopa • Wendy O. Koopa • Roy Koopa • Ludwig von Koopa Mini Bosses Reznor • Big Boo Enemies Enemies & Hazards Amazing Flyin' Hammer Bro. • Ball 'n' Chain • Banzai Bill • Beak Pillar • Big Boo • Big Bubble • Big Steely • Blargg • Blurp • Bob-omb • Bony Beetle • Boo Buddy • Boo Block • Boo Buddy Snake • Boo Buddy Swarm • Bullet Bill • Buzzy Beetle • Chainsaw • Chargin' Chuck • Cheep-Cheep • Circling Boo Buddies • Climbing Koopa • Dino Rhino • Dino-Torch • Disappearing Boo Buddy • Dry Bones • Eerie • Falling Spike • Fishbone • Fishin' Boo • Fishin' Lakitu • Floating Mine • Flying Goomba • Fuzzy • Galoomba • Gold Bowser Statue • Gray Bowser Statue • Grinder • Hothead • Jumping Piranha Plant • Jumping Pumpkin Plant • Kamikaze Koopa • Koopa Troopa • Koopa Paratroopa • Lakitu • Lava Bubble • Li'l Sparky • Magikoopa • Mask Koopa • Mecha-Koopa • Mega Mole • Monty Mole • Muncher • Ninji • Para-bomb • Paragoomba • Para Mask Koopa • Pidgit Bill • Pillar • Pipe Lakitu • Piranha Plant • Pokey • Porcupuffer • Rex • Rip Van Fish • Skewer • Spike Top • Spiny • Sumo Bro. • Super Koopa • Swooper • Thwimp • Thwomp • Torpedo Ted • Urchin • Volcano Lotus • Wiggler Miscellaneous Items Super Mushroom • Fire Flower • Cape Feather • Star • 1-up Mushroom • 3-Up Moon • Key • Coin • P-Balloon • Dragon Coin • P-Switch • Berry • Yoshi's Wings• Jumping Board • ? Ball • Silver Coin • Grab Block • Coin Snake