2.37 inches), 160 × 160 pixels, 4 greys LCD. There was no hardware video acceleration, graphics had to be drawn by software to a framebuffer. Sound: 2 Tonal and 1 Noise Channel plus additional audio DMA stereo output channel. Built-in speaker and headphone jack with stereo earphones included. Power: 4 × AA batteries or 6V AC/DC adapter Communication port: Two Player Link using DE-9 connector. Cartridge port Controls for 1 Player TV adapter (optional) Tiltable Screen (2 positions) List of games Main titles Multi-game titles Block Buster/Cross High [2-in-1] (1992) Hash Block/Eagle Plan [2-in-1] (1992; developed by Bon Treasure) Hash Block/Jacky Lucky/Challenger Tank/Brain Power [4-in-1] (1992) Homebrew As of 2020, the first aftermarket game Assembloids by PriorArt is available for the Supervision. Preservation Like many consoles, the Watara Supervision has lived on through emulation (see MESS). Cowering's Good Tools includes a tool called GoodSV, which catalogues 69 Supervision games as of version 3.27. References External links Syd Bolton's "World's First Supervision Page" Supervision: handheld of the less fortunate Watara rewritable multigame cartridge Fourth-generation video game consoles Handheld game consoles Monochrome video game consoles Products introduced in 1992 65xx-based video game consoles