Read the review here.
“And that is the crux of Swamp Thing’s big issue: By 1992, any organization working on a platformer title for the NES could look to such excellent prior examples as Bionic Commando, Mega Man, Metroid, even a superhero license game like Batman, even superior Disney titles like the Rescue Rangers games, and more. There was no excuse for such bland, boring, difficult gameplay.”
– from the full review, which you can read here.
I know: License titles are an easy target. They are a dime a dozen, so to speak. We all realize the practically rote response of acknowledging that the titles are produced too quickly, in order to turn an easy profit, taking advantage of trends, etc. But even in the realm of license titles, Swamp Thing is a remarkably bad video gaming example for the NES. If you read the full review, you will notice that I pick one particular trait of this game that I usually avoid emphasizing in reviews: The release date. Typically, I do not really care what year it was released, it ultimately makes little difference, and bears little relevance. But when the NES video game was released in 1992, near the end of the console’s life cycle, as Swamp Thing was, it was released in an age when games were finally truly testing the boundaries of the NES hardware and putting out some memorable titles. Rarely is release date such a prominent issue as with Swamp Thing, a cartridge that plays like it was made five years earlier. Read into the issues as deeply or as little as you would like, but the evidence points to this fact, no matter what the year: Swamp Thing was not a good video game.