The setting is a futuristic gladiator tournament, where combatants duel each other to the death for the pleasure of the galactic empire. The game will comprise the player’s fighting career, with the difficulty and rewards ramping up with each match.

Release notes from jrok:

FYI, I have attached yet *another* build, which adds color progression to the enemy sprite and playfield as you advance. It also lengthen’s the range of the enemies beam in addition to making him more aggressive as you get farther in the game. I think that’s gonna be my last update today, because I have to get my butt back to work. Thanks for the encouragement.

http://www.atariage.com/forums/index.php?showtopic=134731