Feedback on my physics game

play the game here

this game was a mistake to human kind
(I will opensource this mess if I get enough replies about it)

Its good and I love the walking but aside from the wiggle arms what makes it a physics engine?

the movement system is all done without a humanoid.
the reason why you also can’t move in mid air is you have an invisible ball under you that spins.
that is how you walk and jump