No, that's not code as in redeemable-for-a-game codes.
I mean the kind of code you can redeem in-game!
There's a good chance you have at least one of these.
At least judging by this site's general demographic?
(COMING SOON...ISH)
ANIMAL CROSSING NEW LEAF DREAM CODE
6C00-01E9-776A
SIZZLE SEASON SALMON RUN SCENARIO
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SIZZLE SEASON SPLATOON MATCH HIGHLIGHTS
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WOBBLEDOG DNA
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MYSTERY DUNGEON EXPLORERS WONDER MAIL
-----------
FEATURED MINECRAFT SEED
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6C00-01E9-776A
SIZZLE SEASON SALMON RUN SCENARIO
----------
SIZZLE SEASON SPLATOON MATCH HIGHLIGHTS
----------
WOBBLEDOG DNA
-----------
MYSTERY DUNGEON EXPLORERS WONDER MAIL
-----------
FEATURED MINECRAFT SEED
-----------