It is Connect 4, with all new game play! When the unit is full, you take turns to poke out your own checkers from the bottom row. If the checker that you removed was part of a connect 4, you keep the checker. Easy first time assembly, just 3 pieces. For portability, the checkers are 'locked' in the grid and the base is used as a handle.
Ages 6 and up. For 2 players. Batteries not required.