Grey Matter plays much like your typical Geometry Wars-style shooter, with a twist: You're the bullet .
To kill an enemy you've got to charge into them, hitting their "brain" to score points. The general rule of thumb is that anything that blinks is bad – the list includes tails, teeth, lasers, and other bullets.
Hit an enemy, and a dotted line will trail behind you. This is the first step of your Trinity attack. Hit two more of the same type of enemy to form a triangle, destroying everything within its perimeter and netting you lots of bonus points. You can keep your points for general bragging rights, or spend them to boost your ships defenses or abilities.
This game was brought to us by a collaboration between Edmund McMillen (Meatboy, Aether) and Tommy Refenes (Goo!).
Check it out over at Kongregate, or download a standalone version that will run on any platform that supports Flash.
Grey Matter [Kongregate]
