“Karnov” on the Nintendo NES is a side-scrolling action platformer that follows the adventures of the titular character, a former circus strongman with the ability to breathe fire. Players control Karnov as he journeys through a series of challenging levels, battling a variety of fantastical enemies. The game blends action and platforming elements, with Karnov utilizing his fire-breathing ability and other weapons to overcome obstacles and defeat bosses.

The core gameplay of “Karnov” revolves around navigating levels, defeating enemies, and collecting power-ups. Karnov can walk, jump, and shoot fireballs, and he can also find items that grant him new abilities. The game features a variety of enemies, ranging from mythical creatures to bizarre monsters. The NES version provides a challenging and somewhat quirky action-platforming experience, known for its unique character and unusual art style.