CNP manipulation is fun...
I believe one boss fight in the Red Hell is against an "Accursed" (nothing can translate its language) and it uses the Balrog AI...
... but it lands in lava, reducing its HP to 0 and being an automatic victory... it flees (with the side-effect of Rukia Kurosaki II and Kim Ethnarch tagging along; this bug, if fixed, would just cause another bug when that same Accursed saves them after Qwertyuiop dies)...
And following it after that "boss fight" (if no Life Capsules were obtained) through the ceiling is the only way to obtain the Crestfallen Infinity...