Hello,
The Nintendo logo you see on the screen is the one the console receives from the cartridge and is checked by the console for copyright protection. If the Nintendo logo appears distorted and you are certain the cartridge is legit, then use isopropyl alcohol to clean the connector of the cartridge. If this has no effect you can try the game in another console. You’re likely to have a defective game.
Blowing into it will have little effect and will bring moisture to the connector.
Michael
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