So I came across a tool called the Vinesauce ROM Corruptor, made for use for a Youtube guy with the username Vinesauce, and what it does is intentionally warp the binary data of a ROM (or any file really) via adding/shifting/replacing bytes at an offset range in order to cause often hilarious results. Likely though, the ROM may either not start at all or freeze at the title screen, which often makes loading save states a good way to bypass these.
In the following table I'm going to list what I did and what the result was if anything interesting happened. This will use a ROM of Chrono Trigger with a battery save file I've had for a while and using SNES9X 1.53 save states. I will also set the end offset to go until the end of the ROM (4001FF).
Offset start | Frequency (every nth byte) | Byte manipulation | Result |
1A54 | 64 | replace 1 with 2 | Marle has cloned herself on the map. Her clone is hovering in the sky and flashing. |
1A54 | 64 | replace 1 with 4 | Marle and Ayla have clones on map now. Ayla has 3 clones facing each direction. |