Really simple 1 dimension Pong game.
Push start to begin. When the ball is at bit 7, push bit 7 button at the same time to throw the ball back to the right.
You can use other bit buttons if you like, it may increase difficulty.
LOC DATA Symbolic Address Content
000 A
001 B
002 X
003 004 P START
200 OUTPUT
377 INPUT
004 023 START LOAD A C=1
005 001
006 311 LEFT ROTL A1
007 034 STORE A OUTPUT
010 200
011 124 LOAD B A
012 000
013 114 SUB B INPUT
014 337
015 234 STORE X INPUT
016 377
017 143 JPD B≠0 LEFT
020 006
021 011 RIGHT SFTR A1
022 034 STORE A OUTPUT
023 200
024 124 LOAD B A
025 000
026 113 SUB B C=1
027 001
030 143 JPD B≠0 RIGHT
031 021
032 344 JPD UNC LEFT
033 006