Fair enough, though I don't have the encyclopedic knowledge that some folks have about which games are spritehacks. OTOH, I think most of what's here is not a spritehack:
http://rufiles.narod.ru/page1.htm
Whereas most or all of what's here is:
http://rufiles.narod.ru/page2.htm
From the first link, I'd say that Chess, Death Caliber, Deer Hunter, and Domino are all fair game. The others I'm not sure about; some, like Tiny Toon Adventures 3, were reviewed in the Top-Tier Pirate Games feature. So was Smart Mouse, BTW. It seems like site policy is not to officially review anything with stolen content or trademark-infringing use of licensed characters (er, hi, Revenge of Shinobi!).
BTW there are more protos that aren't in the list, I think: Beastball, Davis Cup World Tour Tennis 2, Dragon's Lair, Fido Dido, It Came from the Desert (which can be finished IIRC), Itchy & Scratchy, Jelly Boy, ResQ, Stone Protectors...those are the ones I can come up with, and all but DCWTT2 have been reproed FWIW.