The first time I played I didn't know that I could step in the circles to stop the spawn, so after surviving for a minute there were so many guys everywhere that I was overwhelmed and died. The second time I played I figured out how to stop the spawning, and I did much better. I player about 6 more times trying to survive for 3 minutes, and I got to about 2 minutes 30 seconds before I was killed by that sword guy. CURSE YOU SWORD GUY!
The only thing I would add would be a walking animation for the main character.
Very fun game!