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rated 4.29 / 5 stars
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Action - Shooter - Multidirectional

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Credits & Info

Oct 30, 2008 | 1:39 PM EDT

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Author Comments

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 /downloads/flash/greymatt
(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
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!



Rated 5 / 5 stars


farking incredible game and addictive!!


Rated 5 / 5 stars


There are some people complaining about dificult, for they "Go play a atari pacmen then!"
The game rocks! Everything, good enemies, trinity attack is cool. I am trying to beat the boss now. Even the phrases in mid game rocks! And it is awesome in keyboard and I could not play it in mouse(many games where you control something with the mouse bugs and are hard to control)
Very thank you for the game!

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Rated 3 / 5 stars

Should be mouse control

The game is interesting, but its just too hard to control (yes, I did figure out how to use boost and slow, tyvm). With so much movement fine-tuning and speed (a lot of speed) already, there is no reason not to have it fully mouse, except to present a form of fake difficulty.

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Rated 3.5 / 5 stars


Exotic game.


Rated 5 / 5 stars

teh yay!!!

i liked it! gave alot o ,lives fun ned cheats but i liked it got to depression then died ithr sharkthings are weierd O.O