'it is'...

It is...
A disc that became
A program
A rental
A best-seller

It is…
Entertaining,
Mostly peaceful
Sometimes causes rage
But mainly just epic

It is…
Zombies: Survival for the merciless
Multiplayer: for those competitive people
Campaign: for laidback people just for relaxing
Co-op: also, for relaxing

It is…
A game with many styles
Explosive action
Jaw-dropping,
A Cool, affordable, retro game