Cross-overs have been a staple of the comic book business since before Superman met Bugs Bunny. For the publishers, the crossover is an easy way to sell books. For fans, it’s either a dream come true or an over hyped nightmare of biblical proportions. When a crossover works, it benefits the consumer to no end. IDW has had their fair share of success with their recent crossover series. From the over-top throwback Transformers Vs. GI Joe to the recently announced X-Files and Millennium, IDW is giving just what the fans want. This week, the company mashes together two of their more celebrated, and culturally loved properties, with Teenage Mutant Ninja Turtles/Ghostbusters #1.