Haha, he's so cute. Use yaw stick and push left repeatedly to move forward. Yaw right to sit (and fall on your back). Roll right for play stance. That's it so far!

Updated list of actions:

Yaw left repeating = Move forward
Yaw left hold = Germany Shepherd!
Roll right hold = Play stance
Roll left repeating = Move backwards
Roll left hold = Face plant
Yaw right hold = Sit
Yaw left & Roll right = Lie down
Yaw right & Roll right = Beg
Yaw left & Roll left = Super dog! Face plant
Yaw right & Roll left = SimpleDog needs a vet! Time it right and he'll flip out just before blowing up.

Also while upside down hold Roll left and carefully Yaw right until the legs touch. If held and done just right SimpleDog will self right himself.