are you using keybord or controller?

controller

Originally posted by ace-mos:

controller

LB and RB move the camera sideways (LB moves it to the left, and RB to the right obviously), A makes you pick objects and use them, Y makes you drop the object, B makes you jump, X is for special ability youll get later in the game (but it will be shown as middle click in the instructions for some reason), pressing the right joystick will pause the game, left one will reset the current level but you'll loose a heart everytime you use it

I hope it helps you even if im many months left