After the tied up characters are rescued from being dipped then shows Buster Bunny standing, look closely and you will see his legs missing.
When the Toons failed to Fool Splicer, after They crashed, Melvin's helmet was missing.
When Buster, Babs, Plucky, and Hamton are about to be diped in a gene pool, look closely and you will see Babs's ear bows change from red to purple.
Bugs: If this assignment doesn't turn out funny, Warner Bros. will disembowel any knowledge of the episode and blame it on the writers.
Credit Gag: Buster says "And that's a wrap".
This isn't the first appearance of Splicer at all. He is in "The Looney Beginning" where all the villans run out of the box.
Babs: See you in Swan Lake!
Swan Lake is a famous ballet written by a Russian composer, Matthew Bourne.