おはああああああああああ Mio-chan!

I'm afraid I don't understand what you're asking. Do you want to create a new program that is similar to Osu! or do you want to use Osu! to create a game?

You can create a K-ON! 'beatmap' for Osu! very easily by using the information found on their FAQ.

おはああああああああああ Mio-chan!<br /><br />I'm afraid I don't understand what you're asking. Are you wanting to create your own program that is similar to Osu! or are you wanting to use Osu! to create a game?<br /><br />You can create a K-ON! 'beatmap' for Osu! very easily using the information found on their FAQ