+ useless keys that bop up and down

! tile_key
+ graphic
~ keys bop up and down
~ fixed bounce and oscillate

! keys explode on impact with Nut
! special hitbox
! keys have a shine behind them

! tile_lock
+ graphic
! removes the tile it is on top of.
! in a puff of smoke

~ fixed physics_animation
the ending point can't be called immediately after