HOW: Arrow keys to aim. Spacebar to load, and then spacebar to shoot. You can keep holding down the spacebar to have it constantly reload and shoot. T key for TNT, which follows your mouse. ENEMIES: Creeper: moves towards you and explodes when gets close and does lots of damage Zombie: moves towards you and damages when it touches Slime: same as zombie Wither skeleton: same as zombie Skeleton: stays back and shoots arrows that damage you on contact Enderdragon: works like a zombie, but is bigger and will kill you in one hit Enderman: immune to arrows and teleports around, damaging you when it gets close CHALLENGES: The big 1-1: defeat all enemies using only 1 TNT and 1 arrow Invincible: defeat all enemies without losing any health
With thanks to @Miskatonic777 for some of the pictures and code, and to @Reaper_909 for the rest of the pictures and several great ideas.