It is really simpe use space or up arrow to jump press space or up arrow to use the yellow dot jumps (ps not all of the jumps are helpful ;)...)
GIVE A HEART AND STAR OR I WILL EAT YOUR CHICKEN!!!!!!!!!!!!!!!! Most of code and design by me I hope you guys like the pixelated look. Thanks for @griffpatch's game Geometry dash https://scratch.mit.edu/projects/105500895/ that taught me how to make the game geometry dash