A lot of the game’s data passes through the routine at 0xB5 when it needs to be moved between registers. But we can easily apply a small hack to this routine so that each byte of each “chunk” of data has a predetermined chance of being overwritten by a completely random number. Obviously, the higher the chance we make it be, the more glitched the game will look, but the randomness of the process makes it so fun and unpredictable!
HEX (insert this at address 00B5): CD 5C 3E FE XX* 38 07 CD 5C 3E 23 12 18 02 2A 12 13 0B 79 B0 20 EA C9
0x100 – 0xXX out of 0x100 bytes get glitched
GlitchedCopyData: ; 00B5
call GenRandom ; call 3E5C (generates random 8-bit number in a)
cp XX ; 0x100 – 0xXX out of 0x100 bytes get glitched
jr c, dontGlitch
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