It's pretty easy to get infinite momentum in any direction by using both the arrow keys and WASD in tandem. Is that intended?
Ya, that was intended. Both WASD and arrow keys bind to the same impulse so using both together is kinda like typing really fast. Ultimately there should be a cap on your momentum though, so if you were able to get infinite momentum then that would be a bug.
This is still a prototype though so the momentum mechanic may change as it has been a common feedback point that I need to look into more.
Thanks for playing!