Oh wow. Tracking that seems like a weird way to try to make it seem like more content then there really was. Was sorta expecting it to be something like the internal game code calls the ending a different number or something. Sorta like how smw has one level with basically 3 copies of the same room, two of which are actually identical such that a player would never know they are technically different rooms in the code, but a pedant would consider it necessary to clear all 3 versions to 100% of the rooms.