Still working everything out, but this is my first platformer and first walk cycle, and I am really excited to share it. Anyone is welcome to try it out so far, and the variable "H" is the height of your jump. Also, press "w" or "d" to change the ground. Or just touch the edge. you are welcome to make more costumes for the ground if you like. Oh, and don't worry about falling off; you will respawn. Also, if you press the flag again the ground will not reset, and it will stay on whichever "level" you were on. Well, not level, but playground, sort of.
I used this tutorial by griffpatch_tutor (Thank you) https://scratch.mit.edu/projects/67727504/#player It is very good and I highly recommend it if you are attempting platformers.