Exceed2nd is the prequel to the astonishingly good Exceed3rd - Jade Penetrate. While it was released in 2006, this game is as equally amazing as its younger sister. The game mechanics are a bit like Ikaruga, in that depending which color your character is at the moment, you can move through and collect bullets that are the same color. Demo version available in the Free Software section. Highly recommended if only for the amazing character designs and artwork.