First Rhythm game I played was DDR. Then appeared an "DDR, but with guitars!", which made me interested.(It was a modded version called "Anime Hero".) Then I started liking guitars, and started discovering animes/magas/games/allthat.
These days Guitar Hero is too weird for me, I started playing guitar, having only five notes feels so weird ._.
So I'm not sure which it would be, they don't call as much for me. Only osu
I really like Cytus, and Rhythm Heaven is also really fun! Guitar Hero and Just Dance are also some I really enjoy! One game I SUPER excited for it Chroma. It's basically a Rhythm shooter by Harmonix, and it looks to be EPIC!
I started on arcade caginets. 1)DDR (all) 2)DrumMania (all ver.) 3)Dj Max Teknica 4)Dj hero on xbox 360 5)guitar hero/ rockband 6) EZ2DJ 3rd Trax
Skriggniichan
Skriggniichan
Stepmania, DDR, DJ Max, O2Jam. Even though I stopped playing DDR when I was able to play it decently and I'm not addicted to the others as much as osu.
DJMAX Portable Series (I gots Fever, Blacksquare, Portable 3) DJMAX Online (Private server whoohoo!) DJMAX Trilogy DJMAX Technika (although I never played the arcade ones :c)
(Basically just, DJMAX in general. If you couldn't tell from my avatar)
EZ2DJ/Beatmania (Played 1 version of beatmania, never played EZ2DJ,though I have played EZ2ON) DDR/ITG
Now tho my favorite rhythm games are usually found in the arcades such as PIU series, DDR series, and MaiMai Series (Sega rhythm game. I encourage you guys to check it out if it's available in your local arcades because I think it's only available in Japan and some Asian countries)
All I liked are the Ouendan games for the Nintendo DS, DanceDanceRevolution, and GUITARFREAKS.
GUITARFREAKS is like Guitar Hero, but it uses 3 frets instead of 5, has a smaller timing window, has a wide variety of genres, and contains Konami original songs, which some are also in DDR (like "Venus" from V3 and "FIRE" from the first GF).