8-3

8-3 can refer to the following:
 * World 8-3 from various games
 * Level 8-3 from Mario & Wario
 * Stage 8-3 from Donkey Kong for the Game Boy
 * Chapter 8-3 from Super Paper Mario
 * Area 8-3 from Mario vs. Donkey Kong: Mini-Land Mayhem!
 * 8-3 Remix (Hammer Bros.), a sample course in Super Mario Maker