Mario Bros. VB
During Shoshinkai 1994, a remake of Mario Bros. was announced titled Mario Bros. VB. Aside from the 3D element and the fact that the graphics were completely redone for the remake, Mario Bros. VB would not have been much different from the original.
Development of Mario Bros. VB lasted for less than a year before it was planned to be redone as a full-on platformer (VB Mario Land). Before it was reworked, Mario Bros. VB was featured in the January 1995 issue of Nintendo Power (pg. 89), when it was intended to be one of the launch titles for the Virtual Boy.
Mario Bros. VB was once again reworked into a 3D arrangement of the arcade classic. This new 3D version was initially planned to be a minigame in VB Mario Land, but was instead released as a full game, titled Mario Clash.
The game would play out as your typical 2D Mario, but you'll be given the option to take different routes located on the Foreground and Background of the level, taking advantage of the 2.5D gimmick. Some Warp Pipes led you to Zelda-esque dungeons complete with overhead view. A level would end with the traditional Goal Pole and Castle seen in previous Mario games.