Is there any point in collecting puzzle pieces in Donkey Kong Country Returns?

This is very similar to this question, except mine is about puzzle pieces (although I'm curious for a more satisfying answer to that question as well).

Does anyone know if there are rewards (other than getting image gallery or music gallery stuff updated) for collecting all the puzzle pieces? Also, what about beating levels in Mirror Mode or (like the other question) Time Trials?

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3 Answers

Actually, collecting all the puzzle pieces will give you mirror mode. All the levels in reverse, no diddy, and dk only has one heart. Good luck with that one!

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No there is not. The extra gallery items are the only reward.

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The bonus levels are for rare orb balls. If you have all of them you can open the door of the golden temple.

You get the golden temple if you kill the endboss.

You get the bonus level if you have all of the kong letters in every world.