World Championship Baseball stays in! That's no variant, it's a space st...I mean, it's an updated and expanded version of an earlier game, just like most of the INTV Super Pro titles.
Why are people so determined to include Mouse Trap in a list of "homebrews"? Were there any changes made to the game code? If new modes or something were added, then it should absolutely be in, but otherwise I can't see how it's anything other than a variant.
That doesn't demean the project in any way, it's just a statement based on the idea that the game, not the packaging, is paramount in establishing a "core set".
BTW the most borderline cases in the original 125 are really Learning Fun I & II and Triple Challenge, IMHO.