Here is what I thought about Kirby's Dreamland 2.
the thoughts here are based on a scale from 1 to10 (1 means terrible, 10 means exellent)

Difficulty: 6 - much harder than the first game. I still have not got 100% yet!
Graphics: 5.5- a little better than KD1 I guess...
Replay Value: 5- Getting all of the Rainbow Drop thingies takes a while.
Control: 5- Same as KD1 except to press select to get rid of an ability and/or friend.
2-Player Mode(s): N/A
Overall: 7.2- huge improvement over the first game. I recommend it for just about everybody.