The Joke's on Ray

{{Infobox television episode
| Title = The Joke's on Ray
| Image = 
| Series = Real Ghostbusters
| Season = 4
| Episode = 1
| Airdate = {{Start date|1988|9|10}}
| Writer = 
| Production = 
| Episode list = [[Real Ghostbusters: Season 4]]<br/>[[Real Ghostbusters: Episode Guide]]
| Prev = [[Camping It Up]]
| Next = [[Flip Side]]
}}

Ray and Slimer have been in a joking mood lately, but things are about to get worse when a magical box is opened and releases two imps that like to play deadly practical jokes.