Thwomp Caverns

Thwomp Caverns is the interior location of Thwomp Volcano in Mario & Luigi: Partners in Time. Mario and Luigi and their infant selves can enter here by riding down on Mr. Thwomp.

The level begins with Bowser meeting his infant self, Baby Bowser, but they never realize they're the same person. There is also an early location where the Baby Bros. can glide in midair and collect a large amount of coins. In a secret area, a Thwomp hosts an arcade minigame for the babies to play.

Bowser and Baby Bowser, are fought as bosses here. The level is finished after they get defeated.

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Characters	Protagonists	Mario • Luigi • Baby Mario • Baby Luigi
	Antagonists	Elder Princess Shroob • Princess Shroob
	Other	Baby Peach • Bowser Baddies crew • Dr. Toad • Fawful • Gramma Red and Gramma Green • Hollijolli Mayor • Kylie Koopa • Monty Mole • Mr. Thwomp • Princess Peach • Professor E. 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 • 5 Gold Coin • 10 Gold Coin • 20 Coin • 100 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 • Command Block • Control Block • Empty 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	2-Person Panel • 4-Person Panel • Cobalt Star • Chomp Rock • DS Time Radar • E. Gadd's time machine • Fireball • Hydrogush 4000 • Iceball • Koopa Cannon • Koopa Clown Car • Koopa Cruiser • Pipe • Shroob Blaster • Shroob Missile • Shroob Mushroom • Shroob UFO • Spike Ball • Time hole • Toadbert's Drawing • Treasure Chest Block • Whirlwind
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	Mario & Luigi: Partners in Time/Gallery