Isometric platformers present a three-dimensional environment using two-dimensional graphics in isometric projection. The use of isometric graphics was popularized by Sega's arcade isometric shooter Zaxxon (1981),[19] which Sega followed with the arcade isometric platformer Congo Bongo, released in February 1983.[20] Another early isometric platformer, the ZX Spectrum game Ant Attack, was later released in November 1983.[21]