- Start of chapter 3 seems to load first level in a weird way, some scripts are skipped. By forcing a different level to be loaded you can load other levels and skip a lot of the scripting for those levels.

demo executable editing: (this is using a decrypted binary default.xex as base)

offset 002A496C - "00 00 01 F6" to "00 00 00 68" (when starting s0502, the starting coordinates are all funky. I think it uses the stp for s0104 instead)

offset 01BAF90A - "00 00 00 68" is this what controls which stage is loaded? (for leon)
offset 01BAF93A - "00 00 01 F6" is this what controls which stage is loaded? (for chris)
offset 01BAF952 - "00 00 01 31" is this what controls which stage is loaded? (for leon)