This is a fun game combined with some brain exercise, I like it ^^ I would prefer to shoot with clicks instead of autofire, but auto fire is also OK. The hit sound was very confusing at first: it comes from the side and really sounds like someone knocking. I turned around a few times while playing xD
At some later stage, I got stuck behind a black wall, but the screen didn’t move up, so I had to restart.
Nice entry, thank you :)