The German edition came with a manual, 3DS catalog, Club Nintendo sheet, and warranty information booklet. All the European editions came with the same cartridge.
Only in Germany, those who pre-ordered the game were given a pre-order box with a lenticular cover. This box did not contain the game. Pre-ordered games came in the regular box and it was up to the buyers if they wanted to swap the boxes after they received the game.
1. Front
2. Back
3. Cartridge
4. Front of pre-order box with sticker
5. Back of pre-order box
Thanks to OGDB (images 1-3).