tips:
When in the fps areas use wasd to move, mouse to look, e to activate, and shift to sprint.
Most puzzles are on a timer to automatically win if you take too long, so people who can't figure it out will still get to continue.
Try to dodge things that fly at you normally.
changes:
2 new 3D areas where added.
Many fixes.
puzzles put on timers.
reformatted to run on all windows systems xp or later.
A boss battle.
And credits.