Welcome to the secret!
Rotate deck
"Space" (if "one=0" do= set "variable" to:0 (change "one=1" do) (forever: "change "variable" by: 0.1" rotate "variable" degrees.
when "start" is clicked (forever) (if "not-touching-ground" do:){ (repeat until "touching-ground"{ change Y by -1
when "start" is clicked set "one" to 0 set "variable" to 0