Super Robot Wars OG: Original Generations (スーパーロボット大戦OG オリジナルジェネレーションズ, Sūpā Robotto Taisen Ōjī Orijinaru Jenerēshonzu?) is a tactical role-playing game for the Sony PlayStation 2. Original Generations is a remake of the two Original Generation games for the Nintendo Game Boy Advance and is intended to celebrate the Super Robot Wars series' 15th anniversary. It was released on June 28, 2007.

Source: Wikipedia