This game is a classic. I played it as a little kid, but haven’t beaten it until now.
It’s really short, but it lays the groundwork for future games in the Kirby series. The controls feel spot on. Swallowing enemies doesn’t give you their power. That would be introduced in a later game.
There are basically four stages and a final boss. You can beat it in an hour. And it leaves you wanting more. Which is what Kirby’s Dream Land 2 provides.