Almost done touching things up. Still have lots to add but got some more work done today. Working full time during the day i don't have very many hours to work on this. 

- Added UI interaction text.

- Added railings to stairwell.

- Implemented weapon swapping.

- tweeked some code.

Still need to:

- Update game music

- add more level architecture

- implement final boss

- tweek sound effects

Hopefully this ends up okay. :-)