Frisky Fishy Bits are Kat's favorite kitty treats and one of the reasons he is here now on Earth instead of conquering it. In the short Fishy Frisky Bitty Kitty it shows what happens to Kat when he eats the advanced form of it.
Also shown in Fat Kat, Kat must send food to his home planet for failing to conquer Earth and as a side plan, as his main reason on Earth was to conquer it in Kat to the Future. They seem to be a parody of Goldfish.
They are a knock off of the famous cat food Friskies. They come in a fish form and the front of the box has a picture of a tabby licking His/Her chops.