What is a game boy?

What is a game boy? a song by DJ Martial on BeMusic

Lets go by Skeleton Boy,
Counting in arabic by Skeleton Boy,
Magic E by Skeleton Boy,
HARDT - DJ Martial Death and Bass Remix by Skeleton Boy,
Your're a Loser by Skeleton Boy,
I hate everyone by Skeleton Boy,
Get That by Skeleton Boy,
What is a game boy? by Skeleton Boy,
Toshio 4444 - DJ Martial Drum and bass remix by Skeleton Boy,
T.A.W.Y.W - DJ Martial Drum and Bass HELLBOUND Remix by Skeleton Boy,
Just an animal by Skeleton Boy,
I kill boys by Skeleton Boy,
I love this flow by Skeleton Boy,
Worth it in the long run by Skeleton Boy,