Premise: Jurassic Park is a 1993 video game based on the film and novel of the same name. It was developed and published by Ocean Software and released for the Nintendo Entertainment System (NES). Ocean also released "Jurassic Park" on the handheld Game Boy console. The Game Boy version is a port of the NES version.
Hypothesis: The 1993 Jurassic Park video game which was developed and published by Ocean Software and then released for the Nintendo Entertainment System (NES) was widely popular, so it was also released on the handheld Game Boy console.