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Not to be confused with O2 BR.
O2Mania is an offline emulator for O2Jam, DJMAX and BMS-based files based on O2Jam China.
- full screen and windowed modes
- native BM song selection (searching inside folders and zipped folders by one level)
- pause and stop
- hi-speed and actual speed modification
- the JAM system was not implemented. However, the JAM bar remained on the screen.
- the scoring system is inaccurate compared to the original O2Jam