Barkle is a character that appeared in the Nintendo DS video game Freshly-Picked Tingle's Rosy Rupeeland. It is a dog that is reminiscent of Tingle, clothes wise. As you can see, the Tingle puppy has a hood that looks just like Tingle's.
In the game, he is Tingle's dog. If you give this pup bones then he will go and fetch helpful items for Tingle on his quest.