Kairuga

From the developer:

Kairuga was my first finished game. Prior to making Kairuga I had little experience with coding, but I gradually acquired an understanding of it after studying other people's examples and games that used the same engine. Nevertheless, this game was an important starting experiment, leading onto other bigger projects.

It was a short mini-game, designed with the term "Ikaruga Tribute" in mind. Ikaruga is an innovative shooter developed by Treasure; the game gives you the ability to switch "polarity", (white and black) in order absorb the respective colors of the enemy shots. White would deal double damage to black, and vice versa. Also, you can absorb shots until your power meter is filled up, which will allow you to unleash a volley of polarity missiles. Kairuga was finished in 1 month during the summer of 2006. It contains one level.

Free Full PC Game Download (8 MB):
Official link