Each standard warp zone has 3 levels with retro graphics and allow you to play as 8-Bit Meat Boy. You only get 3 lives to beat each warp zone (excluding character warp zones, character warp zones give you infinite lives) before you're sent to the roadmap level selection screen. Where you'll have to restart the warp zone at the first level again.
Here are all the known warp zone locations in Super Meat Boy! Some of these warp zones include bandages. Check out the list of all bandages in Super Meat Boy.
A-BX, where A is the chapter, B is the level number and X indicates the warp zone is in the dark world version of the level.
1-5: Holy Mountain – Warp Zone (Sky Pup)
1-19: Intermission – Warp Zone (Hand Held Hack)
2-12: Above – Warp Zone (Castle Crashers)
2-5X: Agent Orange – Warp Zone (1977)
3-5: Uptown – Warp Zone (Cartridge Dump)
3-16: Mono – Warp Zone (Ogmo)
Super Meat Boy The Kid Warp Zone Location List
4-8: – Warp Zone (Brimstone) – Thanks to xXCanadian JrXx and ecamirG for this one.
4-18: Boris – Warp Zone (The Fly Guy)
5-7: The Fallen – Warp Zone (The Guy!)