you'll figure it out. Arrow keys. There are some tricks and trolls. (okay a lot)
FYI: this is a Work In Progress so sorry if some of the later levels are easier. If you want a harder challenge go to https://scratch.mit.edu/projects/97626877/#fullscreen It is Insane! if that's too hard, but you still want a challenge, go to https://scratch.mit.edu/projects/96477289/#fullscreen also the creator of both of those is making a third, here is the preview https://scratch.mit.edu/projects/126878582/#fullscreen