NES 2.0 Mapper 470

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NES 2.0 Mapper 470 denotes the INX_007T_V01 multicart circuit board, used for the Retro-Bit re-release of Battletoads and Double Dragon. It is basically AOROM with an additional outer bank register at $5000-$5FFF whose data selects the 256 KiB outer bank. The outer bank register is cleared to $00 on reset.