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Grey matter is an anti shooter, or a shooter without bullets.
Essentially your the bullet.

Run into the exposed brains of incoming attackers to destroy them.
Killing 3 of the same type of enemy will cause a "Trinity attack" killing everything inside it.

Avoid enemy dangers (flashing bullets, tails, teeth and lazers)

Download the stand alone version here
http://www.newgrounds.com /downloads/flash/greymatt er.zip
(it runs faster)

-You can upgrade at any time in game by pressing P or Esc to pause the game.
-Shields are most important and should be purchased first.
-Holding shift will not only slow you down for better control, but it will also extend, and speed up your options that spin around you.
-Trinity Attacks will increase your chain multiplier which gives you more points for upgrades

All the rest of the info is in game

-Edmund & Tommy


Grey Matter can be played with the Xbox 360 controller using FlashJoystick.
To install FlashJoystick visit
http://flashjoystick.pill owfortgames.com/
To install mapping for this game you'll need this file.
greymatter/greymatter.fst ick
once FlashJoystick is installed, if you just hit open instead of save for the .fstick file, it'll auto load into FlashJoystick and you'll be able to play.

Special thanks to Tommy for FlashJoystick!


Fun but short

Its an really fun game but its too short, after you "get" the game it ends in a flash

So Cool

I don't know what the hell I'm doing, but I love it!

lov it

relleh ossim

Edmund is a genius

This game is so addictive. It's pure genius and you struck gold again.


I liked your style and I liked your game. I wish you would have added a storyline though, storylines always seem to get me into the game, and gives me a purpose for doing what I am doing. The other thing that I liked about your game is your upgrade system, I always write in my reviews that I like upgrade systems because it adds to your choice of how the gameplay is. Well done and I cant wait for a sequel!! (hopefully with a storyline!!!) :) good work!

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Credits & Info

4.29 / 5.00

Oct 30, 2008
1:39 PM EDT
Action - Shooter - Multidirectional