Cavanagh had intended to use a professional voice actor, but did not like their results and returned to Frank, the voice of Hexagon, to reprise the role. Super Hexagon is voiced by journalist Jenn Frank. Cavanagh found that anyone could beat the game once they get better reflexes and a better understanding of the game's mechanics.

During the development of the game, Cavanagh made various changes based on 'what felt good', before starting the beta testing process.

Over the course of developing Super Hexagon, Cavanagh had played through it a large amount of time, becoming particularly experienced with the mechanics. The visuals of Super Hexagon are barely different from its original Hexagon iteration. Cavanagh has stated that he is 'not much of a visual artist,' thus settling on a minimal look quickly. As the game's designer Terry Cavanagh saw potential in the project, he decided to increase the game's difficulty and expand upon its concept. Super Hexagon started off as a smaller game prototype titled Hexagon, made and released in one day for the late February 2012 game jam Pirate Kart V. Additional, 'Hyper' difficulty stages can be unlocked by surviving for over sixty seconds on a level. The game contains six different difficulty levels, beginning at hard (Hexagon), harder (Hexagoner), and hardest (Hexagonest). The pace of the game progressively gets more difficult the longer the player has survived and to distract players, the game features a chiptune soundtrack, a background that regularly changes color, and walls that occasionally change direction.

The controls are simple: the player must pivot the triangle to the opening in order to survive. Super Hexagon is a fast-paced twitch game in which the player controls a triangle on a hexagonal grid in the center while walls come from the edges of the screen. A screenshot of Super Hexagon on PC depicting the geometric art style and gameplay

Free hexagon game