In Reply To #1
one of the most annoying Castlevania Glitches is in Simons quest, where something if you whip as your falling off a ledge, you'll fall through the platform below and into an invisable lake, thus costing you a life.
a worthless glitch in Castlevania I, using the same principle and a hit knocking you up to a platform above you, happens in stage 4-3. a dragon will knock you up above the ceiling, not worth trying since it will cost you a quarter of your health.