Thanks for the feedback so far!
Thanks to you guys I have already been able to make the following changes
* Game automatically goes to first screen without pressing spacebar.
* You can now leave the UFO by moving into any of the black space.
* Fixed getting stuck behind the UFO wall (I think, fingers crossed).
* Nerfed the Big head by 1 min damage, 1 max damage and 2 HP.
* Added a Power meter to big head fight.
* Fixed bug where you could by pass the barricades without rolling by going around the river
* "T" and "Y" keys no longer take you to other rooms.