Zero

Zero is the final boss of Kirby's Dream Land 3. It is a form of Dark Matter. He has three different forms.

Form 1
Zero, in this form, looks like a normal black ball of Dark Matter, except it has orange spots along his edges. He attacks by shooting black lightning at Kirby.

Form 2
In this form, Zero looks much like the Zero most people know it as, a large, round and white entity with a blood-red eye. It shoots blood from cuts it opens from around its eye, and sometimes shoots little balls of Dark Matter for Kirby to take care of.

Form 3
Once you defeat Zero's second form, its eye pops out of Zero and you will have to defeat its eye. After you do that, the game is done.