Audio problem: When Bugs says "That's the old ginger, boy!" when practising with his baseball bat, his mouth doesn't move.
Continuity mistake: When one of the Gas House Gorillas takes the plate umpire's place during the game, you can see that the fence behind him has nothing on top of it, but when he calls Bugs out, a net has appeared.
Other mistake: At the start of the baseball game, the announcer says that the Gas House Gorillas are the visiting team, yet on the scoreboard they are shown above the Tea Totallers.
Bugs Bunny: Watch me paste this pathetic palooka with a powerful paralyzing perfect pachydermus percussion pitch.