Here are the results (from most interesting to worst):Memblers wrote:So far it sounds like VS Wrecking Crew the only game that uses the battery for something interesting (not coin counting alone).
VS. Wrecking Crew -- High score table is saved
VS. Balloon Fight / VS. Ice Climber (Dual) -- Coin slot distribution saved | High score table is not saved
VS. Baseball / VS. Tennis -- Provides battery tester | Saves nothing (doesn't even provide high score table)
VS. Raid on Bungeling Bay / VS. Mahjong -- Saves nothing
If you want to get pedantic, all VS games have battery-backed RAM. The list above reveals how that feature was utilized. In the cart DB in my emulator, I'm going to mark the ones that do something with with the battery as having NVRAM.
@NewRisingSun As the keeper of the NES 2.0 ROMs, I'll leave the header bit choices up to you.