The list of mouse-compatible games is rather short:
1552: Tenka Dairan
A-Ressha de Ikkō 3
Brandish
Dennō Tenshi
Dōkyūsei
Eikan wa Kimi ni
Hatsukoi Monogatari
Jamanoid
Jantei Monogatari 3: Saver Angels
Lemmings
Metal Angel *
Metal Angel 2 *
Nemurenu Yoru no Chiisana Ohanashi
Power Golf 2: Golfer
Princess Maker 2
The Atlas: Renaissance Voyager
Tokimeki Memorial
Vasteel 2 *
(* to be confirmed)
I have a (probably) non exhaustive list for MB128-compatible games, including those few Kōei games that used the Save-kun back-up device. I never could figure out whether the Save-kun was a competing product or a redesigned Memory Base, but the fact is they were released at the same time and the same price. Any information is welcome
[Edit] I just got it from a Japanese source that the Save-kun is an MB128 clone.
Aoki Ōkami to Shiroki Mejika [Save-kun]
A-Ressha de Ikkō 3
Brandish
Eikan wa Kimi ni
Emerald Dragon
Fire Pro Joshi Dōmu Chōjo Taisen: Zenjo vs JWP
Linda³
Magicoal
Nobunaga no Yabō: Budō Fūun Roku [Save-kun]
Nobunaga no Yabō: Zenkoku Ban [Save-kun]
Popful Mail
Princess Maker 2
Private Eye Dol
San Gokushi 3 [Save-kun]
Shin Megami Tensei
Super Real Mahjong P2-3 Custom
Super Real Mahjong P5 Custom
Tadaima Yūsha Boshūchū
The Atlas: Renaissance Voyager
Vasteel 2
Vestcoat, what problem do you have with your MB128?