Changes

[[File:Retroarch_2013-08-16_06-32-24-62.png|thumb|250px|Example of faulty visuals that are exposed when no overscan is cropped. Note the blank blue area to the left and the green garbage on the right. On NTSC CRT TVs, these areas may or may not be visible]]Several NES games need their overscan to be cropped to look proper. Unfortunately, there is seemingly no standard level of overcropping. Many games appear to require different levels for best results. For example, SMB3 Super Mario Bros. 3 requires quite a lot bit of cropping, however, the same level of cropping will certainly obscure the letters of the status bar in Castlevania games.