Dawn of Sorrow (2005), the first installment of Castlevania on Nintendo DS, is a direct sequel to GBA hit Aria of Sorrow. Everyone is trying to kill our hero Soma Cruz, since in the previous game he absorbed all of Dracula's attributes. You can always trust weird cults to try and bring about the end of the world by unleashing this power.
Using the same basic game-destroying glitches as its predecessor, this movie completes the game 00:37.81 seconds faster through more optimized movement and manipulation. Unfortunately, you don't get to see the final boss, but it would probably be boring anyway.