Stack-Up (a.k.a. Robot Block) is a video game released in 1985 for the Nintendo Entertainment System, designed for use with the Robotic Operating Buddy. Stack-Up is one of two games in Nintendo's Robot Series, the other being Gyromite. While Gyromite was a pack-in game with the R.O.B. itself and therefore came with all the parts (tops and platforms) needed to play the game, Stack-up was unique in that it came in a non-standard game box containing additional platforms (attachable to R.O.B.'s base) and colored discs that were stacked up according to the gameplay. Because it was marketed to children and the set came with many small, plastic parts, complete copies of the game are very hard to come by. [source:wikipedia]
Distribution : Retail - Commercial Platform(s) : NES (Famicom)