Nintendo Hard/Sliding Scale

Nintendo Hard Scale. You've beaten:
 * 7+: Pit of Death or any other Tool Assistance required hack
 * 6+: Kaizo Mario World (or any other games in the Kaizo genre)
 * 5: I Wanna Be the Guy
 * 4: Mega Man (any game, any sub-series)
 * 3: Super Mario Bros.: The Lost Levels
 * 2: New Super Mario Bros Wii
 * 1: Super Mario Galaxy
 * 0: Super Paper Mario
 * -1: Mario & Luigi series (+0.5 if you beat both Partners in Time and Bowser's Inside Story)
 * -2: Luigi's Mansion
 * -3 and below: Mario Party