Inifinate? Not Really!
Simple fun game.
Didn't like the tech structure, and that you can't reach top guns in 5 lvls.
There should be more levels.
+ It's too few bullets and too avoidable for a bullet hell
Too less damage per bullet to be a challenge if you have any skill avoiding the shots. IMHO let the bullets make more dmg but reset life with every lvl-up.