Kinda reminded me of The Machine. I really liked how the Sahara Underworld part looked.
Bugs:
(x1003y1001) You can enter from the right and see "Follow the ghosts" before you have the eye.
(x988y1000) In the blue area above the hologram there is a wallswim if you jump while heading right.
(x996y1004) In the mines right of the tower there is a wallswim if you jump while heading left.
(x994y1000) With the double and high jump you can reach the void above.
(x1014y1004) Right of the red/black lava area, part of the wall is not solid.