For the feature tags, I used the actual usage on the board rather than the functional description of the IC. I thought using just the partnos was something set in stone by the dev team. The current released softlist is my nomination
Beside Centurion, Arnold P., Battle Squadron, Shining Force, Road Rash can by nuked from the list as well.
I got both "Alt PCB" variations of Aladdin and Asterix as lose carts. Probably these where bundled with the MD1/MD2 boxes!? According to the chip datestamps they got manufactured in line with the single chip variants. Another ominous one is Wimbledon that fits in line with the serial code. But I wasn't able to track down a single chip release so far.
Right, the Blockout MPR release is Japan only (dist'ed by Sega). It was before EA's agreement with Victor. I just got the 2nd print of the European release (with the grey background on the cart) and it came in the same configuration like the first release (except the PCB rev bumped to B).
btw, the new addition of Ishido seems to be underdumped. The Fujitsu partno says 4M (512 KB).