The controls are so easy I promise they were intentionally left out haha. But if you're curious:

Movement can be done with WASD, Arrow Keys, or Numpad 8,4,2/1,6. Every other key acts as an "action key".

It's a one-button game!

I guess there are "touch controls" built-in too, in case you're into that. Not very good ones, but they're there just in case.