The Troopea's appearance is similar to the Koopa Troopa, but a green sprout sits on their head and they have blue shells. In the original game, they are quadruple, but in the remake, they are bipedal.
They also have stronger variants called Elite Troopea, Paratroopea, and Scaratroopea. Their undead variant may be the beanish Dry Bones, although this is unlikely since those foes are quadrupeds, even in the remake.
In Mario & Luigi: Superstar Saga
Troopeas debuted in Mario & Luigi: Superstar Saga as an enemy in Beanbean Outskirts.
Battle
In battle, Troopeas only have two attacks, which is trying to ram into one of the brothers. However, Troopeas can also heal their allies in combat by launching a water droplet onto them. Troopeas recover their allies or themselves with a water droplet. They can dive under the Bros.. If the target does not jump, the target will deal damage.
In Minion Quest: The Search for Bowser
Troopeas appear as enemies in the side story of the remake, Minion Quest: The Search for Bowser. They first appear in Turnip Tantrum. They fight as melee troopers, and their Special Skill is Rock Solid.
Etymology
Troopea is a combination of the words Troopa and pea, hence being the Beanbean Kingdom equivalent of a Koopa Troopa.
Go, Goomba, Go! • This Beans War • For the Love of Hammers • Winged Traitors • The Hoohoo Melee Brigade • The Great Hammer Barrage • Don't Fear Flying Foes • Goombas vs. Goombas • The Amnesiac Koopa King • Goombas Galore
Turnip Tantrum • Minions vs. Minions • Hunger Pains • A War of Shy Guys and Flybys • Battle Tail • Beanbean Crossfire • The Rival Trio • Larry's Fortress • Captain Shy Guy Trial • Professor E. Gadd's Research • Oh, Hi, Shy Guy! • Shell Brigade, Move Out!
The Sweet Smell of Soda • Deep Trouble • Forest Masquerade • Reclaim the Red Goblet! • Gold Beanie Appears • Invisible Leaderership • Ice Guys Finish Last • The Tough-As-Nails Squad • Forest Fight • Popple's Partner • Captain Goomba Trial (Gold) • Shy Guy Goes Overboard • King of the Boos
A Dry Bone to Pick • The Trouble with Toads • Flying Beans in the Desert • Find the Invincibility Mushroom! • Gold Beanie Spotted! • Silly Ol' Goomp • Ice Bros. Feel the Heat • The Lonely Koopa Troopa • Toad Rescue • Captain Koopa Troopa Trial • Popple's Partner, Part 2 • A Goomba Tail • A Muster of Masks
Goombas Unite • Gather the Cruiser Parts! • Power Play • Spear Party on Ice • Monochrome Explosion • Gold Beanie Fights Back! • Return of the Koopa Cruiser • The Trio's Last Stand • Captain Boo Trial (Gold) • Boo Party! • Shy Guy Barrage
Fireball and Boomerang Crossfire • Chain Chomp and Spike Stomp • A Tale of Tails • Double Trouble Koopaling Caper • Pokey Panic • Rumble in the Castle! • Gold Beanie's Final Stand • Goomba's Worth • Showdown Time!! • Believe in Bowser • Captain Boo Trial • The Mightiest Minions • The Beastly Bean Battalion
• ⋆-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.