Max. 32K PRG ROM.
Max. 32K CHR ROM.
MX8018-0002-A lockout replacement
Seems to be an earlier revision of the NINA-03 board. Appears to have some small changes
in regard to the lockout defeat.
There is only one register on this cart. It maps in kinda strangely.
4100-41FF, 4300-43FF, 4500-45FF ... 5F00-5FFF
C: Selects an 8K CHR ROM bank
CHR banks are unknown on startup. Mirroring is hardwired on cart.