"Flip-Over" is a 3D game, similar to the electronic game Merlin released by Parker Brothers in the 1970s.
However, Merlin is based on a 3x3 grid.
"Flip-Over" consists of n-by-n grid of black buttons. When the game starts, a random number of these buttons is switched to white. Pressing any of the buttons will toggle its color and colors of the four adjacent buttons. The goal of the game is to switch all the buttons to black, preferably in as few button presses as possible.

It provides "hint" solution for each game and each game can be re-played.

o "Flip-Over" has the following 6 choices:
- 3x3 grid
- 4x3 grid
- 5x4 grid
- 6x5 grid
- 6x6 grid
- 7x7 grid

o Each set uses random number generator to create a combination for a game. Therefore, the number of games is unlimited.