Just use my checksum bypass code. Your save file will never be wiped by Konami's code ever again.
Code:
High speed/walk through walls code
94000130 FEDF0000
D9000000 02109850
D4000000 FFFFE000
D6000000 02109850
D2000000 00000000
94000130 FEEF0000
D9000000 02109850
D4000000 00002000
D6000000 02109850
D2000000 00000000
94000130 FEBF0000
D9000000 02109854
D4000000 FFFFE000
D6000000 02109854
D2000000 00000000
94000130 FE7F0000
D9000000 02109854
D4000000 00002000
D6000000 02109854
D2000000 00000000
^ Hold R to use, kill yourself with Dominus Agony and items that hurt you (Spoiled Milk, etc.) if you can't get back (if you're quick enough you can pause and use R and the D Pad to guide yourself back; note, only the room you are in and connected rooms are loaded simultaneously - leaving their bounds will get you stuck sliding up - this code is especially cool in Albus mode where you not only can pause before using the code to disable restrictions to it but can also see Albus moving around on the paused screen!)
Code:
Fixed Volaticus in Training Hall:
522C2070 E3500003
222C2072 00000070
D0000000 00000000
Code:
Select+R to switch to Japanese voice actors:
94000130 FEFB0000
2215A8E4 00000000
D0000000 00000000
Code:
All drops have minimum rarity:
920B63A2 00000205
D3000000 020B6364
C0000000 00000078
20000016 000000FF
1000001A 0000FFFF
DC000000 00000024
D2000000 00000000
Note that this code here
Code:
Infinite Hitstun:
221098E5 000000FF
Does not work well and
shouldn't be used.