Even the most culturally sensitive among us has to acknowledge that Japanese commercials are... well, strange. First of all, most Japanese commercial actors hail from the Randy "Macho Man" Savage school of advertising whereby they look directly into the camera and shout the product name as loudly and excitedly as they can.
For example, imagine if Microsoft ended all its new operating system ads by having some guy yell "SNAP INTO VISTA!!!! OOOOOOO YEAAAAAAAAH!!!" and you'll get an idea of what many Japanese ads are like. Second, Japanese commercials will use sex to sell literally anything. Whereas American ads will typically employ sex appeal for products such as perfumes, clothing and shampoos, Japanese ads will use it to sell Canon color laser copiers.
Summary: Four young children get dressed up like cheese-metal '70s band KISS and pretend to sing and play guitar while visiting various sites in Japan. At the end of the ad, Godzilla shows up and begins blasting atomic fire out of his mouth; the children respond by giggling and blasting atomic fire from their mouths as well. This ad is for a Canon digital camera, by the way.
LOL Quotient: 4/10. The decision to have kids dress up as one of America's most embarrassing bands is perplexing, although strangely adorable.
ZOMG Quotient: 7/10. If only that giant radioactive lizard had been around in the early '90s to stop KISS from embarking on their unfortunate collaboration with Michael Bolton.
Summary: A business man hears two children talking about Sega. For some reason, their conversation haunts him all day, and he can think of nothing else. He gets so distracted by this that he accidentally bumps into some goon in an alleyway who proceeds to beat him senseless. We then see him back at his home, where his wife is giving him medical attention. As the camera focuses in on his bruised face, the "SEGA" logo pops up on the screen.
LOL Quotient: 0/10. Unless you enjoy seeing people get clobbered merely for being fixated on video game systems, you won't find anything funny about this ad.
ZOMG Quotient: 10/10. We can't even imagine what the Sega marketing team was thinking when they concocted this ad. We wouldn't be surprised, though, if Nintendo tried to one-up them with a follow-up ad featuring the world's zaniest trampoline accidents.