The Super Mario Bros. Movie’s post-credits sequence teases a sequel

polygon.com:

Nintendo and Illumination’s The Super Mario Bros. Movie brings Mario, Luigi, Princess Peach, and dozens of Toads and Kongs to the big screen in a highly referential, kid-friendly action movie where the breakout star is Jack Black’s Bowser. Mario and Luigi’s colorful cinematic adventure runs the approximate length of a child’s attention span — roughly 92 minutes — and after the climactic battle, viewers may be wondering, “Do I need to sit through The Super Mario Bros. Movie credits with my kid to find out what happens next?”

Regardless of who you’re seeing the movie with, the short answer is yes, The Super Mario Bros. Movie does have a post-credits scene. And a mid-credits scene. The good news is that since this is an animated movie and not a CGI/live-action hybrid blockbuster from Marvel Studios, pieced together by dozens of FX studios, the credits are pretty short compared to what modern moviegoers are used to.

Here’s what happens.

[Ed. note: The following contains spoilers for the ending of The Super Mario Bros. Movie.]

After Mario and Luigi handily defeat Bowser in Brooklyn, the King of the Koopas is safely sequestered in a glass prison. Following a short credits sequence, the film cuts back to Bowser, well after the battle in New York. He is once again singing his ode to the princess, “Peaches.” It’s revealed that this reprise performance is played by a shrunken Bowser on a shrunken grand piano. It’s a funny sight gag, and a chance to get another shot of Jack Black for the road, but it’s also an inconsequential mid-credits stinger.

What happens after the credits is a clear setup for a Super Mario Bros. Movie sequel or spinoff. Once the credits have rolled, the film heads back into the Brooklyn underground, where