HD universe has some really good story! I highly recommend both IV and V. The controls on IV are poopy but it was worth it for me and the entire series worth of cutscenes is on youtube (Rockstar don't mind nothin').

I've played Agent K for forever. He's a lot of fun. We vaguely discussed him being able to know that the Hulk was the Hulk (I am a stickler for respecting 4th wall wishes), but it does occur to me he looks like an MCU historical figure and I'm totally okay with that being noticed.