If you guys are having trouble will Gregor, just use disrupt and withdrawal. Use disrupt over and over, and when you run low on focus, use withdrawal. Then just let your team mates kill him.
I've been glitching like a mad man. Was there no testing of this game at all? I've crushed people with there castles, the game said I shot when I didn't, the game freezes, ect.
How to get the Second Ending:
At the level Deception, instead of going into the beam of light, just wait there for around 20 seconds, and it will vanish. Go further on and you will see 2 bullets. Pick those up. Go all the way to the right, with all the black blocks. Shoot a bullet at the yellow box and jump up. Continue further until the guy comes out of you. Go to the left and jump over the "Gems" and shoot the guy. He will die, and you will get your badge. +1 this so people stop asking