Butterfly

If Croc opens a Smash Box which previously contained a Gobbo, coloured crystal or life, a butterfly will appear. This is because the game will not allow Croc to obtain these items repeatedly during a level when Croc respawns from dying, so Croc has to restart the level in order to re-obtain the items. Butterflies also appear during some levels regardless of whether Croc has opened a box in this way.