The MiSTer core for Cosmic Guerilla has been completed.
This core uses a TMS9900 CPU where the original uses a TMS9980 (8 bit version of same CPU, just does 2 byte reads/writes instead of 1 word read/write).
However, game speed is controlled using vertical counter, so should be the same as the original.
Sound effects are all implemented using samples. (so core needs SDRAM fitted – 32Mb minimum)
Watchdog is not implemented (since it uses a weird NE556 based watchdog setup, and all my efforts to recreate one with the same timing results in it rebooting constantly)