Buzz & Suzi ver. 1.1 (Buzz and Waldog USA Prototype hack) by DarthVaderX:

This patch restores the second player from the original Korean version, Suzy instead of Waldog and this is reflected in the title as well. Unfortunately it was not able to restore the original color of your outfit either (red).

 Update 1.1:

'Waldog’ name changed to 'Suzi' on the scoring screen at the end of the stage, thanks to Zynk. 

 Update 1.2: 

Restored Suzi's original colors from the Korean version (with a small edit to the eyes to appear more 'natural').

Tile Layer Pro and Mesen's PPU viewer were used.