The Angry Sun, or simply Sun, is a small, evil sun that first appeared in Super Mario Bros. 3. It appears visually similar to that of an actual sun, but is slightly bigger than Mario and Luigi and has an evil-looking expression.
The Angry Sun appears in two levels of Super Mario Bros. 3. The first time it appears is in World 2-Quicksand, and the second time in World 8-2, in the heart of the Koopa Kingdom, Dark Land. To attack Mario, the Angry Sun swoops down in a U-shaped arch, attempting to hit the plumber. The Angry Sun can be destroyed by a Koopa Shell, or with hammers from the Hammer Suit. However, if the player cannot do this, they could also defeat it by finishing the level. In World 8-2, the Angry Sun can also be bypassed by taking either of the secret Warp Pipes near the beginning of the level. The Angry Sun notably only appears in desert-like areas.
- In the premade world for the Super Mario Mash-Up Pack in Minecraft, pixel art of an Angry Sun appears in the desert.
- One of the Five Fun Guys in Paper Mario: Color Splash mentions the Angry Sun.
- Unused files hint that the Angry Sun was going to at one point appear in Super Mario Maker.