Super Nintendo Entertainment System (SNES)
Facing significant competition from the previously-released Sega Genesis, Nintendo responded with the Super Nintendo Entertainment System (or Super Famicom in Japan). The SNES featured 16-bit graphics and a controller that was ergonomically similar to that of the NES, but with four extra buttons: X and Y (located above A and B), and L and R (located at the top corners of the controller).
Like the Game Boy, the SNES was an instant success, selling out within hours of its release. It triggered an intense conflict with Sega known as the "console wars," which saw Sega positioning the Genesis as a cool and edgy console, and Nintendo framing the SNES as more family-friendly. The SNES eventually won this sales competition and managed to remain relevant throughout the '90s, due to outstanding game development and a coprocessor called Super FX that enabled 3D rendering.