Just in case you want to be a pro player my personnal best score is :
If you want to write your game in binary, the best way would be to go for an old emulation platform with assembly ;).
You can take a look at Atari 2600. Here you'll find the programmer's guide.
https://www.atarihq.com/danb/files/stella.pdf
Each command is a processor message which is directly linked to a binary instruction ;).
