KONAMI'S PING-PONG
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Converted by remax and Ayor61 (version including Plus palette color upgrade)

Remax version : 
J1B1 = Start 1 player game
J2B1 = Start 2 player game

Ayor61's version : 
J1B1 = Start 1 player game
J1B2 = Start 2 player game.

Plus palette color upgrade offers nearer arcade looking aspect
