I got this as part of a larger bundle. It bears the Tsudaka Original name on the cart and references the Othello Multivision along with the SC-3000 and SG-1000. First time I've seen this....really cool stuff.
The Othello Multivision was a hardware clone of the Sega SG-3000, There are a couple of OM branded games but they are incredibly scarce.
I found this site.It has some screenshots and info. http://pirates.emucamp.com/a/j/007/sg1000/main.html
Pretty cool find. Those pre-Nes systems are always interesting, and this game looks pretty colourful. You always get great stuff. Where do you get 80's retro games in Japan? Is there anything else interesting in this bundle you got?
That's what I love about this place. XerdoPwerko asks where do I get my stuff and not a single person ran in here and yelled "Yahoo Auctions!"