In July 2007 the game was released in several European countries, despite of known problems due to the PSP's 3.5 firmware update. For instance, the game is known to lock while playing Super Puzzle Fighter II Turbo
. Capcom blames Sony and claims the game worked flawlessly with the 3.4 firmware release. The company is working with Sony to solve the problem, and it will likely be fixed with the next firmware update.