WARNING: This section contains potential spoilers for APB (not heavy spoilers though). Scroll down if you wish to see them.
Lobby: näköalapaikka // greenhouse
Effortless: dreamin dreamin // CAPSULE
Cakewalk: føn // greenhouse
Easy: the desire to run // Astroblur
Normal: ^_< // diberhaze
Moderate: MESSSSS // Tamsoo52
Tricky: without warning // frums.lzh
Hard: caprice for if // Frums
Difficult: !nterroban(?, // Aoi
Challenging: Wake Up // Frums
Main: ultimer // ikaruga_nex
RED: raputa // sasakure.UK
YLW: GOD RACE // METAROOM
GRN: 露華 // greenhouse
CYN: Helix Nebula // Anamanaguchi
BLU: 黒塗り世界宛て書簡 // Frog96
MGN: PINK ORIGINS // METAROOM
[REBOOT]: Ничто // Frums
[INITIATION]: taceō // greenhouse
[PROCESSION]: The junk in my head // Tamsoo52
[G O T E]: [REDACTED FOR SPOILERS] // Frums
[COMPLICATION]: [REDACTED FOR SPOILERS] // Frums
___: city of the white bird // Astroblur
___: lost in new blankness // Frums
___: ρars/ey // siqlo
___: dimensionalize nervous breakdown // Frums
___: c_majalis // greenhouse
___: 魔王(World Ender) // sasakure.UK
___: crystalized // Camellia
Main: μ // Frums
α: QuomodocunquizE // Camellia
β: theriocide // greenhouse
γ: 紺碧の桎梏 // 蛇塚透花
Main: Desert // Hakushi Hasegawa
δ: ? // ?.UK
ε: ? // ?
ζ: ? // ?
403 page: ink1 // greenhouse
Pseudo-404 page: sup01 // Soup 0.9
405 page: I Can't Even Remember My Name // Frums
Unused Stuff: Group Photoshoot // Mario Artist: Talent Studio
Music: Journey // ARForest
Other Games: sink to the seep sea world // Chroma
a: a
(will be updated as time goes on)