I tryed a "Old" weapons only challange in Res. Evil 4. I got to chapter 2-2 before giveing up.

the conditions were:

- You can only use the Knife, shotgun, Red9, Rifle (Not semi-auto), and Broken Butterfly.

- you must play on professinal

- You can only hold two weapons at a time (not including knife)

- No grenades

I also did a Kingdom key only challange in Kingdom hearts and KH 2