|Tetris Series: Super 9-in-1|
|Developer||RCM or Hwang Shinwei|
|Sound engine||Hwang Shinwei|
Tetris Series: Super 9-in-1 is a multicart created (or at least published) by RCM in 1991. It includes nine different games which are either puzzle games, developed by Hwang Shinwei, or both.
The menu system is unorthodox, with the game titles not shown on the menu itself as well as being able to press A and B to select different games. It's possible that some games on the 260-in-1 multicart are derived from this multicart. Unlike the 260-in-1 version, Memory Pair has a Hwang Shinwei copyright.
Several versions of this multicart exist, with the others (6-in-1 and 12-in-1) only containing the first 6 games on this version.
The image on the menu is likely taken from an anime, although the source is unknown.