This is another variation of the unlicensed Mahjang Companion game for the NES, released in Asia. The 'Sachen' variation, like the 'Hacker' version, suggests a modified or unofficial release. Gameplay would stick to the rules of traditional mahjong.  More information is needed to definitively discuss its differences from the 'Hacker' version, but it likely involves some variation in gameplay, graphics or additional features.

Mahjang Companion (Asia) (Unl) (Sachen)

Maharaja (Japan)