Super Smash Bros. (Australia) is not a separate game but a regional release of the original Super Smash Bros. for the Nintendo 64. This version would be identical to the original in terms of gameplay—a crossover fighting game featuring characters from various Nintendo franchises.  However, it would have been localized for the Australian market, including potential language changes and regional pricing.  It was developed by HAL Laboratory and published by Nintendo.

Super Smash Bros. (Australia)

Super Robot Taisen 64 (Japan)