.OSZ2

.OSZ2 file extension

This is the basic program to work with .OSZ2 extension

osu!

osu!osu! beatmap

osu! is a rhythm game based on the gameplay of a variety of popular commercial rhythm games. While aiming to keep authentic gameplay and scoring, osu! increases the epic factor through online rankings, multiplayer, replay exchange, and a huge community following... (more)

The program works with the following extensions: osk, osr, osz and osz2