This is a really cool game, and fun use of the word scale! I really liked swapping between the abilities, particularly the legs with different movement. The recoil on the punching arms is awesome too!
That said I had difficulty with the spring leg piece that let you jump high, it was pretty inconsistent. It seems like its a timing thing, I ended up getting it about three times in a row for my longest streak. If it is timing, a jump buffer would make a ton of difference. Awesome job!