From Data Crystal
|Mapper Name||SEROM (Nintendo MMC1)|
|PRG-ROM Pages||32 KiB|
|CHR-ROM Pages||16 KiB|
|ROM map | RAM map | Text table | Notes | Tutorials|
Tengen had previously published a pirate original game with mostly the same rules under the title Tetяis: The Soviet Mind Game and lost a trademark infringement lawsuit over the name.