Ah satoshi_matrix, you have whetted my appetite for Little Samson even more. Of all the games I'd like to add to my NES collection -- Panic Restaurant, Chip 'n' Dale's Rescue Rangers 2, Conquest of the Crystal Palace, etc. -- this is undoubtedly the one I long to play the most.
Regarding Kirby's Adventure, I remember anticipating and purchasing that game when it was first released, and I believe that it was the first game that illustrated that although the SNES was the new hotness, the NES could still provide some amazingly comparable experiences. This game, as well as The Legend of Zelda, were the two NES games that kept me coming back for more.