Yeah I was lucky on this one. Actually I bought the cart coz I was curious about the "160M" label and I noticed it was slightly heavier than the usual pirate. By the time this one was released, memory was less of an issue than it used to be in the early years so it was probably no longer needed to "cheat" the customer; although they could have made a 1 000 000 in 1 with this cart Ironically I do have a 999 999 in 1 cart for Famicom but to be honest I was not adventurous enough to browse through the entire menu! :lol:
Sorry for picking up a relatively old post, but ever since someone showed me those weird carts, I had to get one ! This one came up on eBay 2 weeks ago: Seems to be another (earlier) version from the same manufacturer: the exact same chips are used and there's also 4 spaces for ROMs, but no die spots for COBs. Those ROMs are 1MB 8/16bits stuck in byte mode, they're in a weird through-hole TSOP-looking package but have the same pinout as the 27C800's. Here's the schematic: As far as I can understand, the PAL can only differentiate 4 write ranges: $0000~$1FFF, $2000~$3FFF, $4000~$5FFF and $6000~$7FFF which are all in the ROM space. Some of the games included in the cart originaly used the MBC1 mapper to switch ROM banks. Since the biggest games are 128kB (8x 16kB banks), the PAL only "emulates" the lower 3 bits of the original $2000~$3FFF MBC1 range. Those are the IO1/2/3 outputs of the PAL going straight to the A16/A15/A14 of the ROMs (probably reversed to simplify the fusemap). The other write ranges match the ones for the RAM configuration of the MBC1 (which no included game use), so they're used for other things: One range clocks the 273 latch and is used by the menu for sure, selecting one of the 4 possible ROM chip (bits 4/5), the 128kB bank number in which the game's first bank is (bits 0~3), two other bits for the PAL to add a 16kB bank offset to pack games <128kB (bits 6/7). Not sure what the other 2 ranges do, maybe there's just only those 2. Will dump the menu code next week to see what bytes are latched to start each game.
Gonna make my first post here. In contrast to a huge one, here's one the size of a GBA cart. Don't know if this cart is anything special in particular, but it's one of the more interesting bootleg GB carts I have.
I've got a GBC game in a GBA cart too. It wouldn't fit in a GBC though, would it? I've never tried it, but I would guess it's to trick people into thinking it's a GBA game when it really isn't.
You guys sure your talking about GB? Because GBA multi-carts have the same amount of pins, and many feature emulators for classic systems which can be a little misleading.
Already saw some GBA-looking carts not having the milled plastic edges to make the GBA think it's a regular GB cart (the cart connector has a switch on the left side to detect cart types). No emulation, just GB roms. By looking at the picture, I bet it's the same thing. Real GBA carts are like this: That PCB also has the center hole for the screw normally found in GB carts, so it was clearly intended to be fitted in GB/CGB cart cases at first. (Edited that last schematic, ROMs are 2MB and writes to the PAL are just $2000 and $4000. The menu code is a mess and runs from RAM, but isn't voluntarily obfuscated.)
These are awesome ! All you need now is to load it into a Gamegear and then into a memory card. I love that it has a custom case.
I have some similar ones that I picked up in Brazil Pirated Game Boy games by Y=MX+B, on Flickr IMG_5621 by Y=MX+B, on Flickr
I know. Sticking a regular gameboy game into a gameboy advance is stress inducing enough, but having THAT sucker sticking out just raises said stress level up a few hundred notches.