From my limited japanese:
Saikyou Gensei is the company brand - literally "Strongest Silver", makes sense coming from a company called "SilverStarJapan"
Igo = A board game, using black a white counters. It looks like reversi, but with different rules.
Shogi = A Japanese version of Chess.
So different core games (both puzzle), but using the same engine/menu design to save time and money.