This is more like a demo game, as it has only 2 short levels (although it loops back to the first level at the end of the second one, so you can play forever if you wish), but it is still fun as Kirby has many different abilities. He can fly, he can inhale objects (including blocks) and blow them back out at enemies, and if he inhales an enemy he can absorb it to gain a mystery power-up. See the Controls option in the game for full details of how to play.

I recommend changing the key settings in the Controls option, specifically "Inhale/Attack" - set it to the Ctrl key instead of Alt. This is because the Alt key has a special menu function in some operating systems which can interrupt gameplay.