How do u get all of the grabs on gnarshmallow?

I have become addicted to gnarshmallow but i cannot get the last 2 grabs. i have the tail, safety, and the japan but i cannot get the last 2. how the hell do u get them?
 
Just stomp 5 different tricks in one run. a hint to keep in mind: going in switch is a dif trick than not going in switch. (i.e if u pull a 180 off a jump u can pull a switch 180 ad i will count as a diff trick pulled)
 
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