DJMax Fever

DJMax Fever
Developer: Pentavision Publisher: PM Studios Platform: PlayStation Portable Released in US: January 27, 2009 (Retail), January 21, 2010 (PSN) Released in EU: May 26, 2010 (PSN) This game has revisional differences. This game has anti-piracy features.

DJMax Fever is a rhythm action game.

Revision Differences

Missions

In the UMD version, missions 45 and 65 are impossible to beat due to how high the score needs. This was fixed in the PSN version.

(Source: RetroAchievements forum)

Anti-Piracy

The game performs two checks to detect if a game is being run off the UMD. upon startup, the game checks the directory ms0:/PSP/ISO (on modded PSP systems, this allows ISO games to be run) on the inserted Memory Stick. If the directory is detected on the inserted Memory Stick, the game crashes.

As with most DJMAX Portable games in the series after DJMAX Portable International, In the retail version of the game, The game will perform a check on the read speed to make sure that the loading times are equivalent to a UMD. If the loading times are faster (likely due to running an ISO off the Memory Stick), then after playing the game for a few minutes, the anti-piracy will; Add distortion to the background music and randomize the playback speed of the keysounds and SFX audio, after a few additional minutes, the distortion becomes louder and then slowly get higher pitched overtime until turning into a loud, distorted sound effect. Shortly after, the game will flicker the graphics list to randomly skip drawing textures which causes the screen to flash rapidly. After attempting to change the song one or two times, It will lock up the game. This is completely absent in the PSN versions.