More specifically, a Tony Hawk mod based off the games.
It would work with a normal skateboard vehicle/item, with the controls of the PC Tony Hawk games.
Keybinds:
comma = flips
period = grind/lip tricks
forward slash = grab tricks
space = ollie/jump
WASD = moving and turning as usual
shift = switch
I know this would be really hard to make, but it's something I've really wanted for a long time.