found a way to use full mouse and keyboard

when on the starting screen before you press start, make sure a controller isn't connected yet.                       you might be able  to i haven't tested it fully    but this is what worked best for me 

step1: plug in your controller, press start, then unplug it

step2: wait until you load in

step3: click in-game,  and you can use mouse and keyboard 

i guess this was left in by mistake   -- by the devs for testing so they didn't need a controller every time 

controls i found so far

w a s d >> to move

mouse + click/drag  >> tricks

middle mouse button >> markers (to tp to or to make one)

r >> use the skateboard

space >> go faster wile on the skateboard

ctrl >> to row around ig    don't know fully what it dose