Kanon Easter Egg - Harvest Moon's Kappa???

Now, I'm not quite sure what episode it is in, but it's the one where Yuuichi is spending time with Shiori as he learned she is dying. Now when they are looking at the stuffed animals in a window, look to the left corner, their left, at the top, and you'll see none other than the Kappa from Harvest Moon: FOMT GBA game.