Mario Bros. VB

Mario Clash game was originally a mini-game which was seen in VB Mario Land, an unreleased Virtual Boy game which was shown at the Winter Consumer Electronics Show in Las Vegas, 1995. The game Mario Bros. VB itself was a earlier, stand-alone demo which was shown at the Shoshinkai expo in Japan, which took place on November 15th and 16th, 1994.

The Electronic Entertainment Expo in May 1995 revealed that the Mario Bros. minigame (which was previously known to be included in the VB Mario Land demo), was now being developed as a stand-alone game titled Mario Clash. It was to be released as a launch title for the Virtual Boy. For unknown reasons, there were no further reports of VB Mario Land being developed.