If games count --
OP:
Sorairo Days - Nakagawa Shoko /Gurren Lagann OP1&2
Bouken Desho Desho? - Hirano Aya/Melancholy of Suzumiya Haruhi OP1
Mag Mell ~cuckool mix 2007~ - eufonius/CLANNAD OP1
P3 FES - Yumi Kawamura/Lotus Juice/Persona 3 FES OP
Little Busters! - RITA/Little Busters! OP
DAYS - FLOW/Eureka seveN OP1
Bamboo Beat - Hirohashi Ryou (and others)/Bamboo Blade OP1
sakura - NIRGILIS/Eureka seveN OP4
being - KOTOKO/Shakugan no Shana OP2
silky heart - Horie Yui/Toradora! OP2
Euphoric Field - Tenmon feat. Elisa/ef - a tale of memories
Atashi no Machi, Ashita no Machi - Takahashi Hitomi/Toshokan Sensou
(and a drama OP: realize - melody./Dragonzakura(?))
ED:
Hare Hare Yukai - Hirano Aya, Chihara Minori, Yuko Goto/The Melancholy of Suzumiya Haruhi ED1
Uso - SID/Fullmetal Alchemist - Brotherhood ED1
Star Rise - Hirohashi Ryou (and others)/Bamboo Blade ED1
sailing day - BUMP OF CHICKEN/One Piece Movie 4 (?) ED
Orange - Kugimiya Rie, Horie Yui, Kitamura Eri/Toradora! ED2
Aka no Seijaku - Ishida Yoko/Shakugan no Shana ED2
Hareru Michi - JichoKacho/Keroro Gunsou OP4
Modokashii Sekai no Ue de - Makino Yui/Welcome to the NHK! ED2
Canvas - Coolon/Eureka seveN ED4
I think I'm missing something but I can't think of what
shruggg