Finalized pause menu (even though I feel like the buttons are a tiny bit too large, but it's a pain to make even the smallest changes)
pause menu added to all non-cutscene levels
Aah and his follow script are updated, still not complete, so isolated on level 5

The game window will look gray due to the pause menu GUITextures. If you need to see the game screen without the gray, you can click the check box next to the pause menu object's name in the inspector