Posting this here since it's been a while and I haven't wanted to do any work on it. I've been working on this on Bizhawk 1.8.1 so if it doesn't sync on later version then use that. It should sync just fine on both the (U) and (J) versions, though it was specifically made on the (U) version ROM.
Feel free to take a crack at completing the run: The thread in the TG-16 forum has my reasons for wanting to take a break from the project.
#17263986223054304 - Splatterhouse (TG-16) Full Test Run