MottZilla wrote:
Well, I forgot about BootGod's database, so I'm looking through each Tengen game I know of, so far I haven't seen one say MIMIC.
What is mapper 206? Several of them are claimed to be that. Nestopia loads them and says they are mapper 4.
Klax, Road Runner, Rolling Thunder, Shinobi, and Skull & Crossbones are the only ones that appear to be 64, others I'm not sure as some say they are mapper 4, some say they are 206.
Mapper 64 is RAMBO-1 and not too many games used it. It's very similar to an MMC3 but has more banks (i.e. 8 1K CHR and 3 8K PRG banks) that I remember... and cycle based IRQ along with scanline based IRQs. That is why alot of emulators didn't run skull and crossbones. It uses the CPU cycle mode.
MIMIC-1 is indeed what Tengen called their MMC3-similar mapper. It's basically a stripped down MMC3 without IRQs or mirroring. MIMIC-1 carts have hardware mirroring. The PCB says "MIMIC-1" on it, AFAIR. Been a few years since I had a cart open.
It's an exact clone? of the Namco chip, which is marked 106 or something, been ages since I looked now. You find those mapper chips on the DEROM/DEIROM boards. It's a MIMIC-1. The Tengen and Namco chips have an identical pinout and function identically too.