: The header file containing song information, title, and metadata.
A high-BPM classical remix of Beethoven's Sonata No. 14 (Moonlight Sonata).
Song packs are usually distributed as large compressed archives (.ZIP or .RAR) due to their gigabyte-scale size. Extract the contents directly into your Music folder. Ensure the .ojn and .ojm files are either directly in the folder or nested properly within individual song subfolders, depending on how your specific O2Mania version reads directories. Step 3: Refresh the In-Game Cache Launch O2Mania.exe . Go to the song selection screen.