: should the levels be viddable? (Is that a
: word?)
Since they all start in Rebellion mode (no weapons, minimal health, etc.), it makes no difference if you access a level by beating the one before it, or if you jump straight to it using the cheat. So that part of the Vidmaster Challenge (starting fresh by skipping to a level) is already in effect.
If you mean "with fists and/or pistol only," that's not a priority. Both Ryoko's map and my own map are beatable (although not easily) using the weapons and powerups available in the level.