Level 15 is bugged. I have no structure to demolish, the gun's chamber is empty, despite there being balls in the queue, and I can't control the direction of the gun. I'd think it was locked up hard, except that everything else works, including getting back to the main menu and starting a different level.
I really want to like this game. It's got an interesting premise and the plot is actually pretty good. But it's glitch city. I already detailed one glitch where if you talk to Lucille just before she "teleports", the game freezes. Then I was having trouble finding some of the alternate endings, so I found a walkthrough, and what they're telling me to do simply doesn't work. I suspect I did something in the wrong order, or with people in the wrong rooms, and it takes too long to go back through it all, so ... screw it. If there weren't so many glitches, probably 4/5 (it's still a little tedious), but as it is now, 2/5.
Note that some skills on each tree are useful no matter what weapon you're wielding. I made the mistake of ignoring all but one tree, only to find that the attribute boosts found on the others were very useful, if not vital.
I honestly don't understand how to beat the final boss. He frequently kills me from full health with one hit. I'm level 110 and have 817,418 HP. Have I upgraded my statistics badly? Am I not high enough level yet?
Desperately needs a way to change the key mapping, specifically in "Strength" training. The keys should be oriented so that up, middle, down can be indicated using three fingers in that order. It is impossible to put fingers on the up, right, down keys in that order.