You have to see Marshawn Lynch's cutest fan

Beast Mode, indeed.

Meet Oskar Van De Plash. The 4-year-old came to Seahawks headquarters Sunday to say goodbye to his team and favorite player as they embarked on their journey across the country for Super Bowl XLVIII.

As you can see, the youngster -- who bears a strong resemblance to Brian Bosworth -- covered all the details.

Painted hair in Seahawks colors? Check. Marshawn Lynch jersey? Check. Box of Skittles for the running back? Check.