6-8

6-8 can refer to the following:
 * World 6-8 from various games
 * Level 6-8 from various games
 * Stage 6-8 from Donkey Kong for the Game Boy
 * Gleam Glacier 6-8 from Super Princess Peach
 * Room 6-8 from Mario vs. Donkey Kong 2: March of the Minis
 * Area 6-8 from Mario vs. Donkey Kong: Mini-Land Mayhem!