|Game(s)||Newer Super Mario Bros. DS|
|Appearances||(DS) Thornspire Doomship|
|Related enemy||Piranha Plant|
After Bowser Jr. wake Petey up from his nap, Petey will jump fly around the arena and try to land on you, if he misses, he will slip and fall. Then jump on his stomach. Repeat this one more time. In his final phase he with jump around the arena, this is harder to avoid, but in you do he slips, then you jump on him.
- If you beat Petey and play the level again, Bowser Jr. will not wake Petey up, Petey will wake up himself.
- Petey slips, even though the floor is not slippy, this is most likely a error, since the boss fight from New Super Mario Bros. DS was fought on ice, and this fight is copied and pasted.