>>12574926Forgot to mention another thing that sort of encouraged this headcanon: The huge emphasis in both games on nature vs. civilization, complete with fused abominations.
Also the antagonist you fight through the game being brainwashed by the actual villain, and coming to their senses only at the very end.
These aren't exactly rare tropes, though, and just little things. Although it's hard to see the ex-antagonist leaving you to nearly identical music as a complete 100% coincidence.
