Squirrel With a Gun, as the name implies, is all about a squirrel with a gun. Quite a few guns, actually. Although it's not an action game, nor is there as much shooting as expected. Instead, Squirrel With a Gun is mainly inspired by Goat Simulator and its ilk, letting you run amok in a zany sandbox full of platforming and physics-based puzzles to solve. None of these are particularly good, marred as they are by clunky, imprecise controls and a dearth of personality. Despite being around four hours in length, the whole rodent-wielding-a-firearm gimmick runs out of steam long before the credits roll, leaving you with a janky and unremarkable game that fails to live up to its absurd premise.
In terms of story, there isn't really one to speak of. The game opens with our titular Sciuridae dropping into a secret government bunker to procure a golden acorn. Once the tasty treat is in your possession, you then obtain a pistol from a clumsy Agent Smith-looking spook before being unleashed on a suburban neighborhood to cause mischief and blast away dozens of government agents in search of more acorns. Gathering a specific number of nuts grants you access to new areas, leading to two eventual boss battles against a pair of agents known as Father and Mother (for reasons that aren't clear). Defeating both wraps up the game, covering the entire extent of Squirrel With a Gun's paper-thin narrative.
Lacking any semblance of a story is fine in a game like this, but you would naturally expect some kind of irreverent humor to compensate for the scarcity of character elsewhere. Squirrel With a Gun doesn't attempt to be funny with any sort of regularity; instead, it mainly relies on the image of a squirrel holding a comparatively large shotgun or rocket launcher to provide comedic relief. Maybe you'll get a kick out of a section where you waterski down a river or chuckle when the ragdoll physics break entirely, but humor is not this game's forte.