Zoidstar is gripped by war. Blue Zoid fights Red Zoid in a merciless battle for supremacy.
Mighty Zoidzilla, Blue Zoid combat leader, lies dormant in the hold of your craft, ready for you to climb into its command capsule to merge minds with the powerful machine and take control of this bitter confrontation. Somewhere in the desolate landscape, the Red Zoids lie in wait!
Landing preparations are complete. The descent begins. The task which follows will take you to the very limits of your capabilities and imagination.

LIVE THE GAME. BECOME THE MACHINE!

Source:

Back of Cover - Commodore 64 (UK)

Your Sinclair Mega Game - It'll blow your mind!

C & VG - If you miss out on this one you'll regret it for the rest of the year.

ZZAP Sizzler - A very challenging and excellent arcade/adventure/strategy/shoot'em up.

Amtix - Zoids is without doubt pure brilliance.

Source:

Back of Re-release Cassette Inlay

ZOIDS™

Information bank and sensors provide enemy warnings and data on city complexes.

Railgun targeting system lets you home in on enemy Zoids and fire high velocity metal projectiles.

Missiles are more difficult to target than the railgun, but are correspondingly more effective.

You are Earthman.

You have just crashed on the most desolate, hostile planet in the universe.

Zoidstar.

Home of the most terrifying war machines ever created.

Zoids.

Their creators are long-dead from a poisonous meteor shower, and a civilization of androids has used these Zoids to destroy and conquer the rest of the galaxy.

Now they destroy and conquer each other.

The Blue Zoids are the native inhabitants of Zoidstar and have adopted you into their warlike race.

The Red Zoids, composed of boiling hot metal, are invading exiles from Zoidstar's Blue Moon.

The battle for Zoidstar supremacy is on, and the Red Zoids are winning. If they are triumphant, the rest of the universe will fall prey to they destructive power.

The androids have chosen you, because of your human instinct and cunning, to lead the Blue Zoids into battle.

You must train in the art of Zoidthought, merge minds with the Blue Zoid fighting machine, and defeat the Red Zoids.

Earthman, the fate of the universe is in your mind.

Source:

Back of Box - Commodore 64 (US)