The delightful new Wii U game Lego City Undercover has a bunch of Nintendo Easter eggs. I found a few of them during the 22 hours and counting that I've played the game. The one in the video here is my current favourite.
If there are better Nintendo easter eggs hiding in the game — where does that one green pipe go?? — I'm sure we'll know about them soon enough. Lego City Undercover will be out next week.