How about adding some cool features on Osu!mania like o2Jam.. having this while playing it makes the Osu!Mania mode looks awesome.. and Having shop on Osu like buying some designs instruments for your avatar.. and Osu! can be popular as the o2Jam.. Cuz i know everyone that plays Osu!Mania played o2Jam before soo.. i think this suggestion would be great?
Here is my example..
Here is my example..