Are the Flippers supposed to be in this quest because I think you need them to complete the bonus level. The bonus level starts with a screen that has "Level 9 Entrance" as its room type, followed by a room with 3 Digdoggers, then a room with a fairy, and there is nowhere to go.
If the Flippers are in this quest, where are they. Otherwise what else can I do in the bonus level?