This was found on an Action Replay MK3 dump. Using a switch on the
cartridge (which was lost over time it seems) it was possible to
switch between an Action_Replay_MK3_1987_PAL and this "Niki Cartridge"
ROM.

This Niki Cartridge ROM appears to be a "Diskmate" rename, as that is
what Datel as well used to sell with Action_Replay MK3 hardware.
