Ok, sorry if this has been answered already, if so guide me in the right direction.

I was wondering, when you input the DULLARDBYC code, on the game's pause menu there are a couple new options: Defrag slow ram Defrag fast ram.

Now, I'm not to wise to what that means or what effect they have on the game, but if someone could let me know that would be great. Thanks guys. Again, sorry if this was already discussed.