Halo 3/YMMV

"Master Chief: You know me. When I make a promise...
 * Anticlimax Boss:
 * Best Boss Ever: The dual Scarab battle on The Covenant. Probably the coolest battle in the series.
 * Best Level Ever: Uh, can I nominate the entire second half of the game for this?
 * No. That would include Cortana.
 * Then "The Covenant", where Master Chief and a small army takes out two Scarabs. And there are not cutscenes for that, you have to pilot something onto the backs of those things and blow them up yourself.
 * The Storm is the best level in the first half.
 * Complete Monster: Truth is far beyond redemption by this game.
 * Crowning Moment of Awesome: The level "The Covenant", where you get an amazing shot of a battlefield you're about to be in (complete with two Scarabs and a whole lotta Banshees!) while having a lovely Crowning Music of Awesome.
 * Crowning Moment of Funny: The Easter Egg from versus play when you have flipped over an Elephant. "Hold RB to flip... wait, what?? How did you do that???"
 * Crowning Moment of Heartwarming: In Cortana:

Cortana:...you...keep it. I do know how to pick 'em."

" : Send me out... with a bang."
 * Fridge Brilliance: Cortana says the reason she chose Master Chief over every other Spartan is luck. Check out what happens to Noble Six, a SPARTAN who is as equally skilled as John, in Halo: Reach, and her statement reverberates in hindsight.
 * The policy of the military is that SPARTANs never die, they just listed as MIA. That's exactly what happens to Chief in the most literal sense.
 * Fridge Horror:
 * Well,
 * Memetic Badass: In Halo 3 multiplayer, the Cone. In the first days of release of Halo 3, a player shot the energy barrels of the level, and was subsequently killed by a flying traffic cone. SPARTAN-II are afraid to tread near them.
 * Moral Event Horizon:
 * Nightmare Fuel: Contrasting the previous games, now the Marines (and any Covenant, really) can be "Floodiefied" in real-time. Yes, they turn them into Flood in your face, with a touch of Body Horror.
 * Tear Jerker: Many.


 * The final line of the trilogy:
 * Villain Decay: The Prophet of Truth goes from a Magnificent Bastard to.. Well, the Prophet of Regret.
 * The final line of the trilogy:
 * Villain Decay: The Prophet of Truth goes from a Magnificent Bastard to.. Well, the Prophet of Regret.