A - Move left D - Move right Space(hold) - Fire W - Special ability (charges about every 17kills, using it doesnt count for your kills, its more like a save if you are about to die. This ability is very OP so try not to abuse it. its wount be that fun)
Every 10 kills you get a drop and enemy count and HP scales up. Upgrade (green arrow) enhances your demage, Speed (blue arrows) enhance your fire rate. you can also get a heart dropped if you have less then 3 hearts or if your upgrades and speed are on max. !!unfortunately once there is too many enemy clones the game can get bugged due to scratch's clone limits, and your enemys will start despawning!!