Nintendo Confirms Download Codes for Super Mario 3D All-Stars Will Work After March 31

Nintendo has confirmed the retail download codes for Super Mario 3D All-Stars will still work after March 31, the day the game will be removed from the Nintendo Switch eShop.
The internet-dubbed The Day Mario Dies approaches.

Super Mario 3D All-Stars Review (Switch)

Super Mario 3D All-Stars Review (Switch)

Super Mario Bros.™ Wonder for Nintendo Switch - Nintendo Official Site

Nintendo Confirms Download Codes for Super Mario 3D All-Stars Will Work After March 31

Nintendo is reportedly trying limited-time games 'because data shows re-release sales wither

Mario Tennis Open - Super Mario Wiki, the Mario encyclopedia

Download Codes for Super Mario 3D All-Stars Will Still Work After March 31st!

Mario 3D All-Stars' digital version will still be available after April via retail codes

Download Codes for Super Mario 3D All-Stars Will Still Work After March 31st!

Super Mario 3D All-Stars (for Nintendo Switch) Review

Nintendo Confirms Download Codes for Super Mario 3D All-Stars Will Work After March 31

Super Mario Bros. 3 - Wikipedia

Grab These Games Before Super Mario Dies On March 31

Super Mario Bros. 3+ romhack brings Luigi, Toad and Peach with unique mechanics ala SMB2 into SMB3