I plan to have three bosses and one final boss, which I haven't really thought of yet. You need to beat each boss and then the final boss. Then you would win the game, the first two bosses would be just larger and stronger enemies, but the third boss would be stronger and faster golems mixed with a room full of regular ones. I'm not sure what else to go on from there.
The first key is against a giant blob, not too hard to deal with. You just use the arrows on it and it'll be easily dealt with. The second key is from the giant bat, that spawns bats when hit. The wand is the best choice here. The final key is behind a wall of stone monsters and red stone monsters, you have almost no chance to kill the red stone monsters, so its best to make a path of only regular ones and kill them with the sword.
Once all three keys are obtained, you can enter the final dungeon, which will give you a brand new weapon: a sword that fires magic projectiles that do the same damage as the bow, and pass through objects and enemies like the magic wand's spells. Then you fight the final boss that I haven't really decided the form and fight of.
