Not 100% sure, but I think before Capcom made their four meg cart they thought it would be a three meg model [Cyberbots has the option also, while Pocket Fighter has a 1/4meg option IIRC]. Anything to best SNK's 1meg I guess. Anyway, it works fine with the 1/4meg carts. Honestly, I can't tell the difference between with and without the extra RAM on any three of the games.
I've never noticed the option on Cyberbots, but I have noticed that the character sprites are messed up when the 4 meg cart is in the slot. I'll give this a try later to see if the sprites look okay with the option enabled.
Later: It seems that I can't get the mixed up sprites to show up now...problem solved....uh I guess.. ;^)
(Edited by Lost Monkey at 3:37 pm on Nov. 5, 2001)