Super Meat Boy The Forest All Bandages
In addition to the former strategy, the player may decide to wall jump off of the metallic platform on the right cliff, though this tends to be unnecessary. Since you accelerate slightly faster at the beginning of sliding up a wall than jumping as Meat Boy, you should first get close enough to the wall at the beginning to the point where you are nearly touching it, then wall jump off of it after you slide up about 2/3's up it, or about 4 blocks. If you had unlocked a character that can jump in the air, then you can also go under the middle platform and double jump when you are right under the platform.The fastest way to finish the level with Meat Boy is to wall-jump off the wall immediately left of your spawn up to the metallic wall on the left down to Bandage Girl. Yet again, try not to overshoot it. 
This saves about 0.2 seconds from jumping onto the wall when you spawn.
By ShadaxShadax. Last updated
Step 1: Open a new save of Super Meat Boy
Step 2: Enter 1-5 warpzone
Hello and welcome, fans of old school gaming, to XBLA Fans’ Super Meat Boy Bandage Guide. Getting all the bandages in Super Meat Boy will unlock some secret characters and serve as undeniable. Super Meat Boy took the indie world by storm and even dominated the mainstream market. From the moment it was released, it became an instant classic. Critics and fans alike loved the slightly gory platform which is full of wall jumping action. Oct 20, 2010 Super Meat Boy is a tough as nails platformer where you play as a boy without skin who needs to save his girlfriend made of bandages from an evil fetus in a jar wearing a top hat and a monocle.
Step 3: Get 3 bandages in warpzone by repeating a level
Step 4: Finish warpzone and do 1-6 through 1-11, getting all bandages
Step 5: Go back, and do stages 1-1 through 1-18, getting all bandages
Step 6: Do 1-19 warpzone, getting bandages but not repeating
Step 7: Finish warpzone, do 1-19 through 1-20 getting all bandages
Step 8: Enter forest dark world, do 1-1x through 1-4x getting all bandages
Step 9: You’re done! You have Naija and Dr. Fetus as playable characters now.
Super Meat Boy won’t crash if you unlock all the other characters - it just adds slots for them as well as having slots for Dr. Fetus, potato boy, etc.
FAQ:
Q: How do I keep my good save while doing this glitched shit?
A: Step 1: Go where Steam is located on your computer (Probably either C:Program Files or C:Program Files(x86) but sometimes it's on the D: so if you can't find it, try searching for it)
Step 2: Open Steam --> SteamApps --> common --> Super Meat Boy --> UserData
Step 3: Copy savegame.dat into some other location
Step 4: Right click on Super Meat Boy in your Steam library and go to properties
Step 5: On the 'Updates' tab, uncheck the box at the bottom about cloud synchronization
Step 6: Delete savegame.dat in /Steam/SteamApps/common/Super
Meat Boy/UserData
Step 7: You’re done!
Step 8: If you want to put your old save back in, just delete the current savegame.dat within /Steam/SteamApps/common/Super Meat Boy/UserData and then copy savegame.dat into /Steam/SteamApps/common/Super Meat Boy/UserData. When you start the game back up, you'll have your old save
Q: How does this work?
A: No one really knows, but it has to do with having data in places it shouldn’t be due to bad code design. We can use it to make good things happen though
Q: Thanks?
A: You’re welcome!