A
Apocalypse
Thanks for trying. That's really weird protection concerns only graphics, game should boot anyway.So it seems I only had 1 spare 27c040 BUT I have an original Tetris Plus cart. so I burned your two ROMs and then used the rest of the original ICs from my testris plus on my Angel Kiss PCB.
And it doesn't work... I get static on the screen like an old TV searching for a signal.
I double checked that all the ROMs were in the correct locations, I re-dumped your two ROMs and verified that they were programmed correctly. And double checked that my main board boots properly with a different cart. I did also verify the Angel Kiss cart before I pulled any of the original ROMs. I even tried using the Mahjong sub-board (since the Mahjong games wont boot unless it's installed) and there was no change...
EDIT: I double checked the jumpers between Angel Kiss and Tetris Plus and they're identical, the PCB number is identical as well. FWIW I have yet to see any of these PCBs with modified jumpers.