You genius! I never thought about that. I have just taken all the Seeker SCE's out and now the level works perfectly.

Thanks Blur!

EDIT: Now I found ANOTHER error. Whenever I side-kick with Spaz, in Part 1 AND 2, the game crashes with 2 Access Violations one after the other, and all the SCEs are removed. Why is this happening? It even happens in SP as well.

EDIT 2: I was using the PLUS version of Top Secret III and it gave me nonsense about there being too many tiles and Anim Tiles. I don't understand that, because it's just the same level and I added like 5 tiles.