Castlevania: Symphony of the Night is the first installment of the Castlevania series on PSX, and was also the very first PSX game to have a published TAS.
Follow Richter (playable after you beat the game once) as he glitches and speeds through the castle on a quest to defeat Dracula. If you like fast sliding, dashing, uppercutting, and using precipitation to defeat bosses, you'll love this run.
TASVideos also has several runs using Alucard, including a Replay run, a run that aims for fastest time on a clean save, and a run that explores every room in the castle and obtains all relics.
Note: Due to an emulation error, the audio in the ending FMV sequence doesn't play.