Remembered some more. By the way, that's a nice Sonic 1 Megamix vid.
L. A. Noire. Play the game until The Red Lipstick Murders case. Get to La Bamba Club early and
pick up the glitch clue from the table, crashing the game.
Xena: Warrior Princess for GBC. The
strange corruption glitch in the second swamp screen can cause a softlock or even crash the game. Another, slower way is to ride a mine cart to the exit of the mine using a glitch - that usually crashes the game.
God of War. Play until you get to Poseidon's Challenge. Then do the underwater momentum glitch until game crashes. No, wait, a faster one. Play until you get to the entrance to Challenge of Hades. Open up the Gorgon Eye chest nearby and attempt to save. The save menu should be buffered in a strange way, and retrying from checkpoint makes you enter a glitched version of the menu where you can't leave from (softlock). Another crash you can do at will is to play until you get Army of Hades. Upgrade both Blades and AoH and then retry from last checkpoint. Before image returns, cast AoH. Game crashes. Of course, random freezes can also occur in the game, as early as in the Hydra boss fight.
God of War II. For Bonus Play: play until Colossus III, then switch sub-weapons during the cutscene in which you get Blade of Olympus. That tends to crash the game. Also, the game can crash if you switch sub-weapons before latching onto swinging grapple points. Finally, doing things at the wrong order at Phoenix Chamber and trying to leave will
crash the game.
God of War III. Most of the ways to crash the game I remember involve having finished the game once, so that you unlock Combat Arena and can do NG+ glitch. Fastest way is probably starting a NG+ game, then escaping the first fight. The game crashes after you beat the first boss. Another pretty quick one is getting to Tomb of Ares, spawning the centaur outside the Tomb, high jumping back outside the Tomb, then getting hit by Centaur's throw in the cramped corridor. The camera does a cool effect, then game tends to crash. It's also easy to crash the game while
exiting River Styx (doing a glitch in which you combine "weakened Kratos" and "using items" modes) or attempting an early chain break.
One possible way to crash a New Game save is by playing until you get Claws of Hades, then casting Soul Summon while keeping switching the soul you cast. At least with some souls it tends to crash the game.
God of War III demo. Play until you get Head of Helios. Then cast its attack in air. It works in strange ways and can crash the game. Might be faster ways to crash the game too.
Mortal Kombat II for GB. Play as Shang Tsung. Defeat your opponent, then do a fatality. During the fatality, input the prompt for a stage fatality instead. The game freezes up.
Prince of Persia 2008. Fastest way is probably doing
"teleportation glitch" without having set any coordinates for the game to teleport you to. This usually crashes the game, although not always. Then, a way to softlock the game is by
glitching away from a section where Elika is bound by corruption, then entering a cutscene (softlock at the end of the scene) or going far away and dying (you respawn at the unloaded place from where you left and keep endlessly falling down and respawning, a sort of softlock).