Pro Tennis (c) 1982 Data East.

>>> TECHNICAL DETAILS
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DECO Cassette System hardware
Game ID : 22
Main CPU : M6502 (@ 750 Khz), M6502 (@ 500 Khz), I8X41 (@ 500 Khz)
Sound Chips : (2x) AY8910 (@ 1.5 Mhz)
Screen orientation : Vertical
Video resolution : 240 x 240 pixels
Screen refresh : 57.00 Hz
Palette colors : 32
Players : 2
Control : stick
Buttons : 2

>>> TRIVIA
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Released in May 1982.

>>> OTHER GAME RESOURCES
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Game's rom.