Force Gear is a mini-game hidden in the original PC-Engine version of Tokimeki Memorial. It can be unlocked by joining the in-game Computer Club for three years. This game pays homage to the Gradius series.
The game's story takes place long after the Bacterions are extinct. Also, there are new fighters, different from the previous fighters, in that they all can transform into robots. The main fighter in this game is codenamed "Alpha Gray." Other that that, the true name of this robot/plane remains a mystery.