Up and down :)
Up, Down, Up, Down, Up, Down, Up...
Up and down
Up And Down
Up Down Up Down
Up and down
Up and Down
Up and down
Up and Down
up and down
Sliding up and down
Up and Down
Up and down
Up and Down
Up and down
Bounce, up and down
up and down and up and down
Up and Down
Bouncing up and down
Up and down
