I liked the game, but it has a flaw. If played perfectly, you can get an infinite amount of score. So it is just a test of patience, instead of skill. I noticed you put a cap on the most amount of enemies in the room, and it is this that causes the game to never end (Either if you group them together, or just avoid them indefinetly). Would've also liked a win-condition and maybe some heart pickups to go along with it. Don't like the use of invisible walls here, because it's so obvious it's just an empty hallway to hide the spawning of enemies. And it also doesn't seem like the enemies collide with the objects in the scene.
Still, it was well made and had love put into it. Well done