Hello Giantbomb. I'm going for the 100% achievement and I just cannot get past this level with the bandage. Also I have all characters except the last one. Which character should I use and how do I do this! Thanks.

You can do it with the regular meat boy.  Basically go all the way past it, then jump up the upside down L wall.  The bridge will reform after being gone for a second.  Run and jump back, hitting the bandage.   Go back and hit the switch a second time, and just finish it like normal.

God I hated that stage...getting the bandage was easy but I would always mess up the last part.