Not much is known about this version except that it was based on the Same Game release. I could find almost no information that this existed aside from the video.
Noticeably this game looks remarkably familiar? A little too familiar, resembling a more known version featuring Mario theme and characters? That's because this version is an earlier version that was retrofitted to UNDAKE30 鮫亀大作戦 マリオバージョン "Undake 30: Same Game Mario Version", or literally "UNDAKE 30 Shark-Turtle Battle Mario Version" from what I found on this page: https://www.mariowiki.com/Undake30_Same_Game.
Graphically the game is very different from the Mario title. The theme is apparently surfing space while playing slots while eating cherries and speeding past frogs (What was Hudson on when they developed this game?) Ride the waves! The classic Same Game is remixed as usual.
While Undake 30 Mario version was released to stores as part of a contest across Japan, both versions were available for download on the BS-X Satella during certain time schedules. It is unknown if other versions exist and is possible since all that really needs to be changed are the graphics, music, sounds and animations.
Currently it is dumped Undake 30 shares assets with this version such as an unused frog sound effect and game engine code, scenario and gameplay.
Trivia: The unused frog sound effect I found in the Mario version is actually used when acquiring the frog set in this version
I actually own a physical cartridge of the Mario version and that article is coming up next which will mostly focus on the unused game content I found, and a review as well as pictures of the cartridge and other fun stuff!
