'Stache Smash is a primitive 2D side-scrolling strategy platformer full of twists, turns, and egg puns. In it, the player takes control of Dr. Eggman, who must maneuver through numerous hazards, including pools filled with sharks. Eggman may avoid these obstacles by running, jumping, or swinging on vines. In order to "beat" the game, the player needs to find and collect seven specific objects.
'Stache Smash was developed by Dr. Eggman in an effort to improve his public image. When Eggman tried to sell the game however, he discovered that it was outclassed by more modern video games. This prompted Eggman to abandon 'Stache Smash and begin on Super 'Stache Smash.
- 'Stache Smash is a parody of the 1982 Atari video game Pitfall!.
- The requirement for completing 'Stache Smash is a reference to the video games in the Sonic the Hedgehog series that require the seven Chaos Emeralds to be collected in order to achieve the "good ending" of the respective games.
- Eggman's initial description of this game, as "a game starring a pudgy guy with a mustache", is a reference to Mario.
- The Giant Eggman Robot in Sonic the Hedgehog 2 has an attack named the 'Stache Smasher, where it used its mustache to destroy the Tornado.