You all should use Cheetah Engine on this one. Version 7.2 is good enough, even on Windows 7.
Just select the game process with it and "Activate mono features".
Then, when the game starts, simply look for a "4 bytes" numeric variable with a value of "3" (these are your "lives"). Then, whenever the girl wins a first time, go and do your "Next scan" looking for a value of "2". The next time she wins, do that again, but for the value of "1". Then you will see The Variable you were looking for. Make yourself invincible.
You are welcome.