This game was EPIC! It was really polished, satisfying, and well implemented. It was a simple game, meaning I could just hop in and play with no tutorial! I could easily see myself playing for AGES! However, it was quite empty at parts, maybe have a wave system? Also, an upgrade system would be fun! Additionally, using [space] to shoot would give the player more control, rather than just walking away. Overall, though, one of the best games I've played so far!