Super Meat Boy Easter Egg

The location is marked by the Ori head on the map NOT the circle.
It is inside the Forlor Ruins just after you put the orb in place.

There are several lasers moving before you.
Stones block the lasers and you can step on them safely.
Just glide to right at the right time.
You have to open the door by stomping on the small stone under the door.
At the bottom you can see the Super Meat Boy along with a life cyrstal.