If you are actually looking to modify the game files yourself, I have included a tip at the bottom on how to manually enable cheats.
This was revolutionary because it bypassed the game’s own checkpoint system. You could save mid-fall, mid-reload, or mid-conversation. Loading restored the exact byte state. 9 trainercom igi 2 better
Instead of a standalone trainer, consider the (available on ModDB). It integrates many of the above features (saving anywhere, skip cutscenes, bug fixes) directly into the game without external memory editors. Combined with a lightweight trainer for health/ammo, you get the definitive I.G.I. 2 experience. If you are actually looking to modify the