From the Super Mario Wiki
Elite Troopeas are a stronger, red-shelled version of the normal Troopeas in Mario & Luigi: Superstar Saga. They are the Beanbean Kingdom equivalents of red-shelled Koopa Troopas. Besides their regular ramming attack, they can also heal one enemy in their party or even resurrect a defeated enemy, but they are otherwise identical to Troopeas. They can be found in Gwarhar Lagoon, while winged variants known as Scaratroopeas appear in Joke's End.
In Mario & Luigi: Superstar Saga + Bowser's Minions, they appear as bipedal instead of quadrupedal and wear shoes.
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