Today I am thinking of a game called Pop'n Music Pico 8 edition. It's just like Pop'n music GB, but with more techniques.
Here are some characters that need to be in the game.
Akane [LT] (2P)
Alicia [19]
Alice [9]
Aloe [13]
ALT 2.0 [20]
Arisa [SP]
Ash [8]
Black [LT]
Canopus [SP]
Cherumin [Usa]
Dino [20]
Fuga [pe]
Fukagawa Funawo [12]
Guwanzesama [portable 2]
Harpya [LT]
? (Hatena)[15]
Hiumi [LT]
Jin [ec]
Kanta [13] (2P)
Kicoro [18]
Kobozu [19]
Kojirou [16]
Leicars [7]
Lill [Usa]
Micchan [SP]
Mikoko [12]
Milk [8]
Mimi [LT]
Nyami [LT]
Minit's [SP]
Miyu [LT] (2P)
Mutsuki [14]
MZD [20]
Navi [Usa]
Nia [LT]
Toa [LT]
Nornir [pe] 2P
Oni-Be [13] (2P)
Paku [20]
Pino [13]
Pochiko [SP]
Poet [20]
Purecul Lip [20]
Retsu [SP]
RGB [10] 2P
Rinka [pe]
Rosalie [16]
Schall [ec]
Sigma [15]
Smile [12]
Smooooch [19]
Tiku-Taku [19]
Timer [16]
Usanuko [SP]
Yima [16] 2P
Yuli [16]
Zizz [9] 2P