This month's issue of V-Jump announced Janemba as a playable character in the Japan only arcade game Dragon Ball: Zenkai Battle Royale. Janemba will be able to instantly warp a part of his body to attack his opponent from a distance as well as use his Dimension Sword to cut them down.

The Japanese only arcade game Dragon Ball: Zenkai Battle Royale  released on February 4th, 2011 and still continues to receive in-game updates to this day.

Zenkai Translation

[Picture used in thumbnail is from Dragon Ball: Raging Blast]