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At first, he received no food at all, drinking only water and losing weight. Eventually, he won some sugary drinks from his sweepstakes entries. Later on, he won a bag of rice, but having not won any pots or containers with which to heat it, he was forced to eat it raw, and after devising a makeshift heating container with a discarded bag, he was able to cook the rice by placing it next to the lit stove. However, canned and kibble dog food became his primary food source for some time after running out of rice. After winning a stuffed toy in a sweepstake, he carried on conversations with it as his sensei, as it was his only sort of interaction. He never won clothing he could wear (only ladies' underwear, that was too small for him to use), nor did he ever win anything to trim his growing facial hair and fingernails. He also won other prizes he was unable to use, like movie tickets and a bicycle (both of which would have required him to exit the apartment to utilize). However, he soon adapted the latter into a stationary bike. When he won a television set, he was unable to use it at first, as there was no cable or antenna hookup in the apartment (intentional by the producers out of fear he would discover he was already on TV). He would then win a PlayStation game, a copy of the train simulator title Densha de Go!, alongside the controller needed to play it.
By this time, the show had become so popular within Japanese households, that people were starting to decipher the location of his flat, with paparazzi, fans, and even the press standing outside without Hamatsu knowing it. As such, producers were forced to procure a new space far away from the original location. He was transported blindfolded, and upon uncovering his eyes, he discovered a similar living space, along with all his previously won possessions. When he questioned if he had completed the challenge, he was instead told the change of space was for his new address to "bring in more luck".