Another vote for 'Matix'
The good: upgrades are fairly easy to obtain
The bad: after a few levels, you arent really aiming anymore, just firing into the melee.
The ugly: cmon. No originality at all. You may have well referenced the Matrix in your title, or even named the game 'The Matrikz' or some other clever pun. Its ok to glean ideas from others sources.....but this is pretty much lifted directly from the movie.
Although its a worn out concept (shoot, buy upgrades, shoot, repeat) I think the easy upgrades make it a little more tolerable to play.