Still loving the game devs! A bit slow on progression as I get into zone 4, but not too bad considering normal and hard modes. I wish weapon upgrades came much sooner in most levels; it's usually at the end of the level you feel ready to keep going. The bosses are fine and the variety of enemies and stages is outstanding. The intricacies of the levels, like moving boxes is very neat. Some chain damage needs to be quelled like explosions from the plane won't stop if you are in certain spots.