Boring game. Seriously, I lost at level 120 in level one, casual, and what did I do? Wait for money all the time. At the bosses I had to use my own weapon, but outside that I had nothing to do except for upgrading a gun every now and then.
Though, the design was pretty good, so that's why I give it a 2/5 instead of a 1/5.
It's fairly easy if you know how to do it... And it gets really repetitive. But still addicting at the same time. You'll never see me back here though, "Infinite Loop
Dude! You just completed the Infinite Loop achievement in loops of zen and won the Infinite Loop badge and 30 points!"