Arrow keys/WASD = Move Spacebar = Open Shop/Pause Survival mode: survive as long as you can and beat bosses and enemies. Boss Rush mode: fight all bosses with all maxed out upgrades. Each The plane will automatically heals itself.
TRY MY OTHER GAME HERE: https://scratch.mit.edu/projects/249998910/ Thanks to Warfame for making tutorials of how to make shops, cash, and how to use the "list" block. https://www.youtube.com/channel/UCXJDb8HZ8Hz9HDxWL-wRvmg (Sorry if the shop is a bit glitchy, I don't actually know how to fix it. Please ignore it.) [DO NOT LEAVE THE TAB WHILE THE GAME IS RUNNING] (If you barely get coins or not get coins at all from killing enemies means that the game is glitching, you should re-click the green flag)