Game update

Hello all,

I went and fixed the mouse sensitivity issue.  Previously, the mouse was visible no matter what, because I didn't realize I had to change the mouse visibility on the You Win screen.  Now, I have the mouse captured or visible where it needs to be and the mouse sensitivity should be better.  If it isn't, let me know.

Also, I was given a suggestion of adding checkpoints in the Platformer.  After several attempts, including one where the game, from what I could tell, crashed, I'm afraid checkpoints aren't something that's available.*