Wulcan

A game made for Ludum Dare 23. Try it out, it's one of my funner ones.

From the original release:

DON'T STOP MOVING. Fly through an interstellar grand canyon as the walls slowly close in on you. Destroy wave after wave of enemies trying to get you. Dual 
weapon gameplay, one for killing and another for pushing the walls back. 

From the title screen press ENTER to begin the game. 

During the game you control your ship with the arrow keys. 

As time goes on, enemies will fly at you and the walls will slowly close in. 
You have two guns to deal with both of these problems: 

Pressing (or holding) X will shoot the Alpha gun, a blue bolt that will kill 
enemies. Kill enemies to earn points. 

Holding C will charge and shoot your Beta gun. A pink bolt that pushes the 
walls back when it hits an enemy. 

The bar at the top is your health. It goes down when you take damage. The game 
is over when your health goes to 0 or the walls crush you 

Some enemies have a chance to drop powerups. The red powerup will restore some 
of your health. The blue powerup will improve both of your guns. 

Try to get the blue powerups whenever possible, this will improve your Beta gun 
so you can push the walls back when they start to close in really fast.