Inyou Douji Monogatari is a single-screen platformer by MIR, who is apparently a very good Ikaruga player as well as a doujin game developer. IDM puts you in controls of a young girl… well, I have no idea what the story is because I don’t speak Japanese. And I barely speak English.
IDM’s gameplay, however, is very solid. You begin by picking your character. It’s not just an aesthetic choice. Light (blue) and dark (green) have the same controls, and moves, but the levels are much more difficult if you choose dark, because the types of enemies you can destroy and the types of gems you want to collect change depending on which character you choose. New mechanics are introduced in cutscenes before the level, making it a breeze to learn how to play. But damn does this game get hard very quickly!
Thanks to Mr. Peckerston on the forums for pointing this game out! Check out two of his world 1 plays in the extended:
Light:
Dark: