Selena the Retro-Princess on X: "Many know about the e-reader levels for Super Mario Advance 4 (Mario Bros 3), but not many know the e-reader could add options to the base game (
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The Japanese Release of Super Mario Advance 4: Super Mario Bros. 3 Will Have the e-Reader Levels | Nintendo Life
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Here's a Breakdown of the Extra e-Reader Levels in Super Mario Advance 4: Super Mario Bros. 3 on the Wii U | Nintendo Life
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Super Mario Advance 4 gets unofficial 3DS port in new proof of concept homebrew release | GBAtemp.net - The Independent Video Game Community
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Super Mario Advance 4 : Super Mario Bros. 3 [USA] - Nintendo Gameboy Advance (GBA) rom download | WoWroms.com
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