Koopa Paratroopa made their debut in Super Mario Bros. as a winged variation of the Koopa Troopa, and has become a common enemy in later Mario games. Like their regular variations, the Koopa Paratroopas are commonly seen in their green and red variations. The green Paratroopas either fly back and forth in a fixed path or hop around, while red Paratroopas fly up and down. If a Koopa Paratroopa is jumped on, they will lose their wings, turning them into regular Koopa Troopas.
The Red Koopa Paratroopa appears as a trophy.
As an enemy
Koopa Paratroops are often found flying in midair. Dealing enough damage by attacking them or jumping on them will make them lose their wings, turning them into regular Koopa Troopas. Similar to the Koopa Troopas, the Paratroopas can be defeated by grabbing and throwing the Koopa Troopa inside its shell, or by knocking it off a ledge, which will result in a Paratroopa KO bonus where the player receives 300 points for each Paratroopa KO'd.
While the green Koopa Paratroopas are common, only one red Koopa Paratroopa appears in the entire stage right before the battle with the Yoshi Team. The red Paratroopa's shell behave similarly to their green variation during the stage, but it also deals flame damage.
These winged Koopa Troopas can fly, but they're none too smart: they tend to spend a lot of their time simply jumping or fluttering around a small area. As a result, no one exactly thinks of them as majestic, soaring creatures. They lose their wings and become normal Koopa Troopas if Mario or Luigi jumps on their backs. [10/85]
As an enemy
Koopa Paratroopas appear as enemies in The Subspace Emissary. The green and red versions appear as flying enemies in stages where Bowser's minions are present. Similar to their Melee counterparts, if a Koopa Paratroopa is jumped on, they will lose their wings, turning them into regular Koopa Troopas; however, they cannot harm players on contact, but they attack with a swooping headbutt. The red Some of the Red Koopa Paratroopas even chase their targets and strike when they get close.
When a Koopa Paratroopa loses their wings and fall (provided the attack caused them to flinch), they act similarly to a regular Koopa Troopa. Their health bar, however, will still read "Paratroopa". The wingless red Paratroopas follow their target on foot, though they're slow and easy to escape from. After a while, if not destroyed, they can grow back wings when they go off-screen. If the Paratroopa is KO'd with one hit and doesn't lose its wings, it will reel normally like a defeated enemy instead retreating into its shell.
It is somewhat difficult to catch the Paratroopas as trophies using a Trophy Stand, since a single hit may remove their wings and turn them into a regular Koopa. The player can damage them, move away from them until they aren't visible, and return to their position, making their wings return.
A winged Koopa. These can fly to a degree, but in Super Mario Bros., it wasn't like they could soar wherever they pleased. In fact, they merely hovered, moving back and forth over set areas. Some Koopa Paratroopas don't even take to the skies, but just jump up and down. These become regular old Koopa Troopas when stomped.
A flying Koopa with wings. In Super Mario Bros., they possessed the same abilities as green-shelled Koopa Paratroopas, but the routes they flew were different--they flew up and down rather than side to side. There are no red-shelled Koopas who merely hop up and down. You'll often see them participating in two-person kart races and playing basketball.
The Koopa Pararoopas appear as enemies and reprise their behavior from Brawl.
Koopa Paratroopas also appear as part of the Mario-themed Vs. Enemy Team final battle.
The Green Koopa Paratroopa is exclusive to Super Smash Bros. for Nintendo 3DS.