Here is what I thought about Kirby's Adventure.
the thoughts here are based on a scale from 1 to10 (1 means terrible, 10 means exellent)

Difficulty: 5-  Same as many Kirby games- easy to beat, impossible to get 100%.
Graphics: 6.5- Incredible for a NES game.
Replay Value: 4- Dosen't exactly keep you coming back for more
Control: 7 - very good, but sometimes the buttons on the NES controller  won't work
2-Player mode- N/A
Overall: 5.525 An okay game., Not very addictive, but if your NES is catching dust and you want a new game for it (Or you just happen to be a Kirby fan) Kirby's Adventure is the game for you.