Noitu Love 2

Game name: Noitu Love 2
Platforms: PC (Steam, Desura, DRM-Free)
Developer: Konjak
Website: http://www.konjak.org/index.php?folder=4&file=10

Gorgeous platform game with excellent graphics and music. For a one-man show, this game is really astonishing (my personal favorite, next to original Cave Story).