This game is really really cool, the art especially. The attention to detail and polish is incredible. The gameplay itself is really fun and easy to grasp, with incredible music thrown on top I loved it.
My favourite thing was the heavy metal music with doom mode lol Although the red tint made it extremely hard to see and unplayable in that mode.. shame as I LOVE heavy metal and the implementation of it alone was so funny and awesome!
I really liked the main menu too. You did a great job with this game :)