 The season received positive reviews from media critics . In his review for The Boston Globe , Tom Russo was positive on the season DVD set . Russo praised the episode that " topped the shortlist " , " Plankton 's Good Eye " , writing " the micro @-@ antagonist clones one of SpongeBob 's eyeballs for himself , and suddenly develops a more bubbly worldview . " Author Richard Reitsma cited a scene in " Squidward 's School for Grown @-@ Ups " , in which SpongeBob tries to win back Patrick 's friendship by dressing as the operatic Brünnhilde ( just as Bugs Bunny did in the classic 1957 cartoon What 's Opera , Doc ? ) , as an example of the supposed gay subtext in the series , claimed to exist by some critics of the show and denied by its creator . 
