How do you unlock food in petz dogz pack

i have no idea al i have is like food water n jerkey but i think u need to go in the kitchen alot cuz wen i needed to go to the main entrance i acchully went to the kitchen and it said congratuilaitions u got new dog feed test it out to c if ur dogs like it and i did so i got jerkey.but i thot i would get a anser cuz i dont no either but my cousin dose but shes in alaska so...i want an anser im not giving the anser cuz i dont no it!so dont ask me it was my question 2. im just thinking so u figure it out and type the anser plse i need to no my dogs expecily my germam sheperd faith r tired of the same food and if u dont a anser then....IDK just get the anser