Disco No 1 (c) 1982 Data East.
You play a 90 pound weakling kid in a roller rink who has to skate around the bad guys in order to win the love admiration of cute chicks. Earn points by completely encircling one or more tough guys and picking up various bonus items that float across the rink. Interesting gameplay mechanics, nice music and decent graphics for 1982.

>>> TECHNICAL DETAILS
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DECO Cassette System hardware
Game ID : 19
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 March 1982.
This game is also known as 'Sweet Heart'.

>>> OTHER GAME RESOURCES
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Game's rom.
Machine's picture.