The best thing you can do is look around.
To find a missing game like Mariokart 7, try retracing your steps and looking in small spaces and inside couch cushins where they might have fallen into.
on the back of the ds game there will be a few letters or numbers that is the game id
the last place a person left it
The missing kitten appears randomly after you've opened and closed the gate.
There is no Webkinz Nintendo DS game.
go to buy it at market
Playing the leaf game
You can get the ds game from stores in town or any other good stores which sell ds games. If you can not find it in a shop then you will be able to buy it online
you can find it in walmart,target or toysrus.
To get oddie on the ds game Go to desert desert and you can find oddie where the purple brocoli is.
at a games shop
Retrace your steps from the beginning