its like 12 standard flip tricks (no 360 hardflips, pop shuv late flips and shit like that)
then if you include just 180s to all those tricks thats 12 x 2
you can then do those 24 tricks 4 different ways (fakie, regular, nollie, switch)
so thats 96 flatground tricks
maybe minus a few cause i don't really see people doin 360 front shove body varials.