W - Jump A - Left D - Right Hold or tap A or D to Wall Climb Arrow keys work for everything. Touch the flag to move to the next level.
The music is from https://scratch.mit.edu/users/SaltyCreeper67/ The Game the musics from is called https://scratch.mit.edu/projects/364349725/ The movement isn't from me but I don't remember who it was from Sorry For the loud music it doesnt turn down