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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!


Ver Unique

This game had a really cool atmosphere that made it very addicting. The concept of a trinity attack was a very ingenious addition to the game, and what really did it for me was the sounds you used when an enemy was destroyed not to mention how cool the enemies themselves looked! I am now a big fan of all your work awesome game Keep it up!:P
The sperm enemies where annoying btw XD!


Very nice.

lov it

relleh ossim


Its really fun!

Holy shit.

This game wins. It got so amazingly hard, I couldn't stop smiling. Spectacular!

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Credits & Info

4.29 / 5.00

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