Street Supremacy[a] is a racing video game developed by Genki and published by Konami in North America, Europe and Australia.

It was released on April 21, 2005, in Japan, February 28, 2006, in North America, September 2006 in France and Oct 6, 2006 in Australia for the PlayStation Portable.

It received poor reviews from critics, primarily citing its loading times and driving mechanics.

The game received an aggregate score of 41/100 on Metacritic, indicating "generally unfavorable reviews".

[3] Chris Roper of IGN rated the game 2.5/10, calling it "easily one of the worst racing games I've ever laid my hands on, bar none", and noting that the ad-hoc multiplayer was "completely and entirely nonfunctional", and that both racers became more and more out of sync as the race progressed.