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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!


Very Imaginative!

A solid little anti-shooter. Extremely entertaining and addictive. The trinity attacks add strategy to the game and make it feel more like a puzzle game than a shooter, but that's not a bad thing!

It's going in my favorites!

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a little of this, a little of that...

I was able to play this with the keyboard.

I would have liked to of seen a mouse version. I would have liked to seen a version designed with the keyboard in mind. I lacked these things with no great loss of enjoyment.

I would maintain a sentiment that the "option" feature should have had a greater reach than the teeth of the enemy. It would form a very fair counter attack.

9/10 good game.

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wouldve been better if you didnt RANDOMLY EXPLODE FOR NO REASON >:(

Sold out by xbox

I have an idea, why program this PC game for a 360 controller when every PC out there has a mouse? Why not program it for that?

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Awesome game!

Can you list the quotes you had on there like the ones for stress, anxiety and so on? I liked them. Or did you find them on Wikipedia?

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Credits & Info

4.29 / 5.00

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