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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!



i loved the sayings it told me.

fun and addicting

i only wish i had a xbox to play it with a controller

Suprisingly fun

Sorta reminds me of Indestructotank in that your main goal is to crash into enemies. My main problem is with how difficult it is to set up the trinity attack. Thankfully, the end boss lets you get off two free ones on him. Speaking of which, that was an awesome end fight. Took me a bit to figure out how to damage his final form, but I eventually took him down and unlocked Boss and then Expert modes.

Also, I'm guessing the end credits are supposed to scroll up form the bottom of the screen, but for some reason it's really choppy for me and doesn't scroll properly.

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i dont get it?

and the controls are horrible, sorry, no fun


This is an excellent game. Just hard enough for it to be entertaining without being infuriating. The artwork was unique and fluid. I'd say this stands up to any other game in the genre. Some people didn't enjoy the controls but I loved them. I'm sort of tired with the heavy focus on mouse controls in flash recently. I just wish it was longer.

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Credits & Info

4.29 / 5.00

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