Tokyo Wars

This game allows one to eight players to control separate tanks (either as teammates or as opponents).[4] The player(s) can play either in the heart of downtown Tokyo or at the city's bayside dock.[4] However, the players have twenty seconds to make all the decisions before the game automatically locks them in. The tanks are identical except in color; green[4] (representing the Green Godzillas) and white[4] (representing the White Mammoth). The storyline provided by the game's promotional poster states that the game takes place in the 1990s.

Source: Wikipedia, "Tokyo Wars", available under the CC-BY-SA License.