Fixed errors when running model_vs_game.py

[RubySteegmansPXL]

There were a couple errors when running model_vs_game.py, I'm guessing some NHL94 stuff with trying to access non-existing methods as well as model_vs_game.py setting argument model_1 while this is load_p1_model when running different scripts.

Fixed this by just adding some try-except blocks

[MatPoliquin]

Yeah changes I made for NHL94 broke model_vs_game for other games so I already fixed it by updating the base ai_sys and display code: fix

In any case thanks for taking the time for that fix