In the beginning Bonnie pushes Buzz and Jessie down a mountain on a sled, and 6 seconds later we see Jessie is covered in Styrofoam peanuts across the room. Jessie couldn't have gotten over there without Bonnie seeing her.
Just like in Toy Story, the fanfare doesn't play when Buzz's button is pushed.
The Cleric gives a thumb down signal known as "Pollice verso". Whether this is actually the correct signal to seal the fate of a gladiator after combat is the subject of much debate.