DIY video games

Filter cleans up films — legally
If they can legally cleanse films with toggable filters, why can't they do the reverse on video games?
The industry would also continue offline only PS2 titles if this happens.

Remember The Sims Hot Date for PC?
Upon installation you were asked to insert House Party to copy duplicate content, and again to add AI interaction.
This is a kind of EP for the PS2.
You are given a bonus disk (must rent at game store) which has no visible content on it within the context of your game.
The player can program in every movement, dialog, and character interaction with supplied materials (easy to follow prompts, tabs, and popups).
You can give your AI new skin and clothing (or skin without clothing).
You can turn a T rating into an M rating (new props and settings), but there will not be AO contents on it.

When disk 2 is taken out of the PS2 and it's restarted or the game is re-loaded, it will go back to it's original state it was bought in.
The new disk is for private use only with the same non commercial disclaimer as movie rentals.