Yeah, yeah- better late than pregnant.
- Click 2 adjacent bullets to swap their positions. - Line up 3 or more of the same colour to attack. - If you get stuck, press R to rearrange the board at the expense of a chunk of health. - Press P to pause a game. - Press M to toggle sound.
Also, if you're in to this sort of thing, see here- https://play.google.com/store/apps/details?id=air.BeastDuelled