There’s a 3rd Pong game for UEFI, a bare-metal UEFI Shell version of the game:
A one person pong played against a simple ai (but there’s no scoring at the moment)
https://gitlab.com/DrNochi/uefi-projects
For the other 2 UEFI pong games, see: https://firmwaresecurity.com/2017/05/03/another-uefi-pong-game/ and https://firmwaresecurity.com/2016/12/15/efi-pong/