A great start to a great franchise.
User Rating: 8 | Hoshi no Kirby: Yume no Izumi no Monogatari NES
Kirby's Adventure is definitely worth the $5 I paid for it on Virtual Console. It's pretty easy, but it's really a great game. It also began a great, creative franchise. The gameply in Kirby's Adventure is great. You play as Kriby on sidescrolling levels and suck up enemies, swallow them, and get their abilities. These abilities vary among cutter, fire, and several others. The game has lots of levels but it won't take you long to beat them all, not to mention the fact that they're all pretty easy. But there are other things to do in several of the levels besides just beat it, there are switches that unlock other doors that lead to other types of places, like 'museums' where you can get a new copy ability. Overall, Kirby's Adventure is just an all-around great, solid game worth anyone's $5. Do yourself a favor and buy this classic if you haven't already! 
