Kronk: Crowd Patrol Solutions
A big thanks to 53_robin for providing us with the solutions!

There are 6 stamps to collect. It is quite easy to complete it and you can earn 500np from completing it.

First stamp: Play the game three times to obtain it.

Second stamp: Complete the game once to obtain it.

Third stamp: Send your score twice to obtain it.

Fourth stamp: View the trailer twice to obtain it.

Fifth stamp: Visit the 'About' section to obtain it.

Sixth stamp: Visit the website twice to obtain it.