Collect one of these to make others appear. Collect them all to get a Treasure Chest.
— Official Kirby and the Rainbow Curse website

Puzzle pieces are items in the Kirby series, debuting in Kirby and the Rainbow Curse. When Kirby touches one, eight additional puzzles pieces appear nearby. If he manages to collect all of them in a few seconds, he is awarded a Treasure Chest.

If he has already collected the Treasure Chest from a given set of puzzle pieces, he will be awarded with point stars instead. Puzzle pieces appear in the stages Up the Big Ol' Tree, Dig and Dash, The Haunted Ship, Kirby Submarine's Torpedo Time, Deep-Divin' Kirby Submarine, Burning Secrets, Infiltrate the Junk Factory!, and Kirby + Kirby.