Ikaruga Ikarumba
Developed by the mighty Treasure in 2001 Ikaruga is a top down shooter with a difference. The gameplay consists of shooting enemies who come in one of two polarities: either black (red) or white (blue). The player's ship can be either polarity, and can be switched at will.
Part of the much-appreciated artistry of the game is the subtle echoing of a spiritual theme. Like its predecessor Radiant Silvergun.
It is among the most successful and recognized arcade shooter ports of the 2000s and is a great addition to XBLA line-up.
Developer Treasure still produces some of the most innovative and playable video games on the market and should be supported by its fans.