Snowballs

Snowballs is NeL technology demonstrator. You are now a gnu on an artic snowfield. You have snowballs which you can throw at other people. When you throw a snowball, you have a few seconds during which you gather more snow before you can throw the next one. If you hit someone, your score increases, and the snowed opponent becomes immune to further snowing (he flashes on the screen) for five seconds. He cannot retaliate while invulnerable.