O2mania -offline O2jam - All 556 Songs Included- Game Jun 2026

, though larger archives can contain over 1,000 official tracks and thousands of fan-made charts.

Open O2Mania.exe . Go to Options > Setting . Point the Song Directory to the Music folder inside your install path. Set your resolution, audio latency (usually -50ms to 0ms depending on your sound card), and key bindings. O2Mania -Offline O2Jam - All 556 Songs Included- Game