Glitches and Fun Facts
Chaos Theory: Things go from chaotic to more when you exploit the unintended secrets of the Floating Garden. Head to the area's leftmost room (which is floating at the top of the castle's left side) and head to its top. From here, activate the Curly, Devil or Manticore soul; the transformation itself will carry Soma straight through the ceiling and into the room's border, where he can travel safely until passing beyond the room's boundaries. Most exit points will take Soma to alternate castle locations, where he'll become stuck, embedded within a structure; our area of interest is the room's immediate top-left exit, which takes him directly to the still-sealed Chaotic Realm portal and before it the Julius Belmont battle. Defeat the Belmont warrior, if you can, then head back to the portal room and in following the Chaotic Realm, where Soma is not yet supposed to be. (Contributed by Amar Youkai.)
Soul Glow: Just let it shine through, yeah, by showing off your overpowering Curly soul. Head to the Chapel and to the room with the large staircase (a Giant Ghost greets you at its top). Head to the level below, where a Skeleton Knight patrols, and hold down the R-trigger to activate your Curly soul, the transformation of which will speed down the stairway until eventually obstructed by the room's right wall. Release Soma's inner glow by releasing the trigger right as it passed the gap seen right before the wall; if done correctly, Soma will glow white and continue to do so until being attacked or until again transforming. (Contributed by Amar Youkai.)
Driving Him Up a Wall: One particular room in the castle's Top Floor features the rolling Baels as paired with Gargoyles and Succubuses. The Baels' job is to roll down the room's inclines and use its narrow structure to inflict repeated damage. Get revenge by luring one to the room's bottom and then goading it into chasing you back up by first using the ramp to the left (it's tricky--you have to position Soma on the middle of the ramp and jump when the Bael speeds toward you). If you can get the Bael to bounce up to the room's second level and to the room's right side, it will become lodged in the wall and spazzingly work its way to the ceiling, where it'll become stuck. Do with it as you will. (Discovered by Sadfra and contributed by Amar Youkai.)
The Door Glitch: This can be done at the very first door as encountered in the Castle Corridor--right where the game begins. As you pass through the door, use the back dash (or any means necessary) to back into the passage before the door closes. If you can pull off this tricky feat, Soma will will pushed upward, continually, through the walls of the room's above it until an opening is met, which happens to be placed in the Underground Reservoir. Take a dip and enjoy your early entry into troubled waters. (Contributed by Amar Youkai.)