From the Super Mario Wiki
Peach using the Subrella in Gleam Glacier

Subrella is one of Perry's abilities in Super Princess Peach. This move is used underwater and involves Perry transforming into a submarine. As a sub, Perry can move in all directions and shoot bubbles if the player is to blow into the Nintendo DS's microphone. Princess Peach can get it for free in Wavy Beach. Subrella's name is a portmanteau of "sub" or "submarine" and "umbrella".

Names in other languages[edit]

Language Name Meaning
Japanese せんすいカッサー
Sensui Kassā
Submerge Perry