You know how in most Petit games, Petit can wall jump and whenever he bumps into something, you hear a metal sound? This is called "Petit Physics". The first Petit game to use this was "Adventure Levels 1 and 2 Rerelease", which wasn't even a modern game. The first Rich3001k game to use this overall was "Sploder Quest X Chapter 1". Other Sploder Series games don't seem to use Petit physics, with the exception of Tigzon Island and Racket Frog.
How to make Petit Physics[]
Drag a robot and delete all of its parts except for one of its leg. Put a slider and jumper (or Arcade mover) on it.