N64 collage!

Starting from top left:

Duke Nukem

Hawk- Fighting Force

Donkey Kong

Doom Ralph- Rampage

Banjo- Banjo - Kazooie

Tak- War Gods

Captain Falcon- Smash Bros

Glover

Optimal Optimus- Transformers: Beast Wars Transmetal

Fox- Star Fox

Kenny- South Park

Davy- Chameleon Twist

Afro Thunder- Ready 2 Rumble 2

Rayman

Buck Bumble

Turok

Sarge- Army Men

Marina- Mischief Makers

Gex