He gave a positive review on the Krusty Krab, and praised SpongeBob for making such delicious patties. His review inspired Eugene H. Krabs to make SpongeBob SquarePants the theme of the restaurant only to poison his customers with expired patties which weren't refrigerated.
Later on, Gene would appear as a thirteenth juror who, like the rest of the jury found Mr. Krabs guilty of all charges. He probably went to the restaurant later and got "spongefied."
Towards the beginning of the game, he appears more as a food critic, but as the game goes on he is revealed to also be a film critic, even having his own office at Reef Cinema. He does still act as a food critic, wishing only for more complex meals.