Some insights/guesses:
This is a Kikkoman commercial.
Kikkoman is the leading producer of soy sauce, like the Heinz of
Ketchup. I agree, the Kikkoman products really do taste better and set
the standard for everyone else.
Kikoman also produces other sauces, so the fish head is probably a
fish(-flavored soy) sauce, or maybe it's just a fish-head dispenser for
regular soy-sauce?
The motorcycle headlight also looks like a soy sauce dispenser.
The black liquid pouring out is the fish-flavored/soy sauce.
The three tempura (crispy batter-fried) items are probably shrimp.
The yellow jar is probably a mild lemon-like sauce for ton-katsu (fried
pork chop). The wimpy defeated yellow jar head is probably some
competitors ton-katsu sauce, while the muscular yellow jar head must be
the Kikkoman product.
The stylized white cat is a common character, often holding a coin for
good luck/fortune.
In the first cat scene with fried egg in front, he appears to choose
correctly and end up in a dream heaven.
The Japanese word for soy sauce is shoyu, so there's a Japanese/English
play on words for Show Me / Show You (shoyu homonym).
The white cube looks like tofu (bean curd), maybe they have a special
sauce for tofu, or maybe they have some product that comes in white
cubes and just looks like tofu cubes here.
Kikkoman makes a sad man happy.
Notice that one of the characters has "heints" on their front. He's
muscular, so maybe Kikkoman and Heinz have joined together? You can
hear the word "ketchup" in the song.
In the second cat scene with rolled-egg-omelet in front, the cat appears
to choose the wrong company's sauce and dies.
Kikkoman gets the girl, of course.
The parade of various foods look like
1. banana-looking food could be a banana, or takuan (smelly pickled
yellow-dyed daikon (Japanese radish))
2. mushroom
3. fish sauce
1. ice cream
2. azuke-bean popsicle ( a common gotcha for non-Japanese is to
expect a fudgesicle and get azuke bean taste instead)
3. fried ice-cream(?)
The singing is horrible, but then this needs no translation!
