OSU!

[Night]

https://osu.ppy.sh/
Anyone here ever played OSU!?
It's pretty simple (heavily anime/otaku themed) rhythm game that you play with mouse+keyboard or graphics tablet.
Best of all, you can customize the game with loads of different skins/sound effects made by the community: https://osu.ppy.sh/forum/15

All the "beatmaps" are also made by the community, and ofc you can find some MaSu too 
Machinae Supremacy - The Great Gianna Sisters
Machinae Supremacy - Bouff
Machinae Supremacy - Gimme More

My personal favourite skin:
Nightcore Final
Some of my favourite beatmaps (dat video):
Skillet - Hero
ONE OK ROCK - The Beginning
ONE OK ROCK - Kanzen Kankaku Dreamer
ONE OK ROCK - Answer is Near

warning: Don't go play online before you can clear "Hard" difficulty levels. The Asian players will absolutely destroy you and you will get depressed...
And having a mouse with 3600DPI wouldn't hurt either... I hope I had a mouse with higher DPI than 3600, at least on some "insane" leveled beatmaps 

The "Most Played Beatmaps over the last 24 hours" box in the lower right corner of the front page is always good place to find good songs (although it has been flooded with SnK OP/ED this season...).

[LymphoCite_T]

I downloaded the game recently. I've played it a little bit I tried to create beatmap, but the ass-licking system (kudosu) won't let me through to the top of the waiting-for-help list (at least unless I help many other players ).

If there is a skilled beatmap maker, they could help me a little bit tho

https://osu.ppy.sh/forum/t/159292

It is Ninja Magic's The Way of Life which can be familiar to some of MaSuforum members since Nicky has played in that band before he was in MaSu