I'm attempting to play from my phone. The game says that's better to play from desktop but what can I do?

This is my experience:

The left button is a kind of joystick that seems to move the mech, but not in a predictable way. The right button also seems to move the mech and it flies it too, and it shoots a ton of missiles too. Are they infinite?

The boost is? I don't know.

There are green mechs around. If I ever hit them I didn't notice. Maybe they have a shield on, but it would be nice to see when a missile hits, even if it makes no damages.

Anyway the frustating part is that I don't know how to move, or: I move but I don't know why.