Is Halo a rip-off of Demolition Man? In Demolition Man, the protagonist is a man named John Spartan, who gets cryogenically frozen and then is later thawed out when a threat arises that only he can pacify. In Halo, a man named John, who is a Spartan, gets thawed out from his cryogenic sleep in order to stop an alien menace that only he can quell. Both feature a female sidekick who annoys the protagonist at every turn, and has the ability to get inside the protagonist's head.
I could go on, but why bother? I've clearly made my point.
"But here's one difference... When Master Chief speaks, people can actually understand what the hell he's saying." lol