Let me translate(Im half Japanese half Vietnamese) in the first segment, the guy is advertising some soda company. right after that he says the guy doesnt know how to swim. He then explains how the contraption works and says that it should propel the guy out to the ballon. Before he starts the countdown, he pulls the old "kids dont try this at home" while the guy is flying in the air...you can hear him saying "holy ****! that guy is gunna end up with a cast between his legs"

Rough Translation...but good enough