I'm finding True Vault Hunter mode to be a lot more enjoyable. I guess it's because I'm ignoring all side quests (so I can do them once I hit 50), and the enemies are actually my level! Although, it seems the enemies are actually scaling to my level, because I gained a level or two throughout the Bloodshot Hideout and the enemies didn't seem to get any weaker (either that or the increase in level is intended given they assume you will gain enough experience in between). Although, the robots at the dam melted like butter when I took out my E-Tech-equipped caustic SMG! :twisted:
I'd imagine that my method for killing the Sentries would probably amuse a few people. I realize that once I hit around 150+ Anarchy stacks, I can't really hit them very well as they're flying around. So... I just aim at the floor and shoot! Once I see the experience number pop up, I know that I killed it.
I also found the Lascaux to be much better this time around, and it's pretty amusing to watch the bullets bounce around the room like a crazy game of Pong.
The only way to get the golden keys are through pre-ordering the game, signing up for Shift through the game and the Shift codes.