Gotcha Force is a brawl fighting game for the Nintendo GameCube, developed by Capcom. The game received poor reviews from critics, as well as a lack of advertising but it soon became a cult-hit among fans of fast-paced mech fights. Capcom themselves seem to consider the game as one of their favorites, as the official Japanese site is stocked with concept art, screenshots of the developers messing around, and videos. [Infos from Wikipedia]
The gameplay is a mix between Virtual On, Power Stone and somehow.. Pokemon (for the hundreds of robots that can be unlocked and collected). The niche who have been able to devote the time necessary to appreciate Gotcha Force, were rewarded with a game really hectic and fun in single player. Unfortunately, the lack of more multiplayer modes and a better framerate, spoil the longevity of the title. The design of robots and their customization is still among the best ever seen in its generation.
Talking about the unseen beta elements, we have collected some beta screens and concept arts, in which we can see different arenas, menu, HUB and early design of the characters, with some changes from the final ones. It seems that in the official website there are some interviews with the team that worked on the game, where they explain the development of the project, but we still need to better translate those.