Great guide, Abigayl. But I have two problems with my game: My first problem is that my character seems to be just sliding on the ground for no reason at all. My second problem is that I can't fall through holes! Even if I jump into them, my player seems to be just walking on air!
Please help me!
Sounds like you forgot to turn on gravity in the scene (or let the player be affected by it). I'd suggest checking there first. If that doesn't solve it, upload the game to StencylForge (make it public and tell me the name), and I'll try to look at it for you.
 "Battalion: Ghosts"){kind=icon}
 "World Creation 2"){kind=icon}
 "Stencyl 2.0 Tutorial 2: Jumping"){kind=icon}
 "Enough Plumbers"){kind=icon}
 "Infectonator 2"){kind=icon}
Sounds like you forgot to turn on gravity in the scene (or let the player be affected by it). I'd suggest checking there first. If that doesn't solve it, upload the game to StencylForge (make it public and tell me the name), and I'll try to look at it for you.