Controls
Move left - A key or left arrow
Move right - D key or right arrow
Jump Space – key
Jump on platforms , avoid spikes and collect coins to get to the top.
Pro Tips –
1 Avoid staying too long on platforms and stay closer to the center of the screen
2 the Jump control is “ floaty ” you can move left and right in the air, and it has stronger Gravity when released.

https://www.youtube.com/watch?v=j1lnB-R1vHQ