Press the left arrow to go left. Press the right arrow to go right. Press the up arrow to go forwards. Press the down arrow to go backwards. Press space to fire cannon. Press f to fire the machine gun.
The only things that I fixed were the cannon (which you can now fire within shorter intervals) and the desert backdrop when you fire it. Try it for yourself. Make sure you go follow my dude Nolan, he makes some awesome stuff and is amazing at coding! We're also working on something big so stay tuned to see what it is (and no, it's not XL1). Also, quick update, XL1 coming soon. Just finished RGB, a 9 level minigame where you have to navigate through colors. RGB Plus should be finished soon. :)