Quoted from jonogo:Midnight Madness on Dirty Harry was fun/silly. I had a friend try it out, he thought it was a blast. It's a "High Score" killer, ie you get a sh*tload of points during the mode. Still a riot, however.
Cactus Canyon Continued has a Midnight Madness mode now too -- but I'm separating that score out as its own entity with it's own champion -- game score stays unaffected. I'm surprised other games allow that giant orgy of points to affect the game score!