Thanks for the comments.
Looks like I'll only be able to pull off 3 levels altogether, which isn't such a big deal, the two levels I dropped did not contain any major plot points.
Though since It'll only have 3 levels, I plan to make the most out of each of them.
The first level is finished, with 'boss' room and placeholder. Right now I'm building the 'boss' mesh and will hopefully get it imported by tomorrow(hopefully working).
Here's a development screenshot:
Will post a picture of the boss room once I've gotten Mr. Vultus Superum in. Just to give you something to think about; the 'boss' head is the size of a small house.
I had a friend test the first level out and it took him 20 mins to figure out the puzzle. Not too shabby in my book. Next level puzzle is planned to be twice as long, and the third level 3 times as long, or tough, however you view it.

"...space is where I'll fight and where I'll die."