I noticed this the other day in the Mini-Manual and mentioned it on a Facebook post about someone collecting all the original Apple II tapes.
http://bitsavers.trailing-edge.com/pdf/apple/apple_II/PrelimApple%5D%5Bmanual.pdf
Look on page 7, it mentions that "Pong" uses Paddle 1 in addition to Paddle 0. This implies it is not talking about "Brick Out" which is not a two player game. Also, Brick Out is specifically mentioned elsewhere in the manual, I believe.
Does a "Pong" tape exist undumped?
The Pong integer BASIC program listing is in the A2 Red book. It has a missing line (a DIM statement). Once you correct this it plays a nice version of the (two player) game, also gives the user the option of playing Handball (single player with paddle 0).
Is there a disk image available with the Red Book programs already typed in?
DOS system masters. Check the early ones too.