Babbit hypnotizies Catsello, despite his efforts to resist, into believing he's Bing Crosby, Frank Sinatra, and Jimmy Durante, then a chicken, and finally a dog, who he sics on the cat. The cat hypnotizes him back. Finally, Catstello hypnotizes both of them into cowboy and horse, leaving him alone to enjoy the deli they live in.
Unfortunately the movie The Mouse-Merized Cat is not yet available on HBO Max.
| Directing | Robert McKimson | Director |
| Writing | Warren Foster | Writer |
| Visual Effects | Richard Bickenbach | Animation |
| Visual Effects | Don Williams | Animation |
| Visual Effects | A.C. Gamer | Animation |
| Production | Edward Selzer | Producer |
| Editing | Treg Brown | Editor |
| Sound | Treg Brown | Sound |
| Sound | Carl W. Stalling | Music |
| Visual Effects | Arthur Davis | Animation |
| Visual Effects | Cal Dalton | Animation |
