Gameboy collage!

Starting from top left:

Tetris

Suezo- Monster Rancher

Abe- Oddworld

Goku

Joust

Cubix

Max- Power Quest

Frogger

Buttercup

Black Mage- Final Fantasy Tactics

Charmander

Zool

Worm- Worms

Archer- Small Soldiers

Conker- Conker's Bad Fur Day

Mr. Game and Watch

Croc

Inspector Gadget

Zen