Stack-Up

Stack-Up is a game that utilizes the R.O.B. accessory, which players physically set up with included colored discs. The on-screen character Professor Hector is controlled to land on blocks, which in turn issue movement commands to the robot in a specific order.

Multiple play modes are available. One primary mode tasks players with stacking the physical discs quickly according to a required pattern, which can be challenging. Another mode involves programming a full sequence of commands for R.O.B. before testing its execution. A separate competitive option allows for one or two players, where the goal is to achieve BINGO by aligning columns and rows to activate robot commands while an opponent does the same.

The overall objective across these modes is to direct R.O.B. to move the colored discs successfully without letting them fall.