Blue Switch (SMA4:SMB3)

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The Blue Switch is an e-Reader card for use with Super Mario Advance 4: Super Mario Bros. 3. It was only available in Japan.

Once scanned, all 1-Up Mushrooms in the game become 3-Up Moons. This feature allows Mario and Luigi to accumulate extra lives much more easily.

Switches
! Switch \| ? Switch \| Blue Green Switch \| Blue Switch \| Blue Switch (SMB3) \| Cyan Switch \| Fire Lamp \| Flipswitch \| Grape Switch \| Hat Switch \| Lever Switch \| Orange Switch \| Pineapple Switch \| P-Switch \| Skull Switch \| Star Switch \| Yellow Switch