Sounds, Level Titles, and More! (Update #6)

There were enough weird little tweaks in this update that I figured it might be worth having an actual changelog:

- Added simple tones to all player actions

-Added level titles. I'm not sure the titles I picked are good, but I guess I'm stuck with them now

- Tweaked player's eye offset to emphasize the facing direction a tiny bit more

- Added  a second 99 door to "End" to eliminate some potential red herrings brought on by previous tweaks to the level

- Boxes no longer appear on the wrong layer briefly while being removed from a stack

- The enter key can now be used to enter and complete levels (previously, only the spacebar worked)

-Slightly tweaked a few pieces of text

and probably many other small tweaks that I'm forgetting.

In other news, I'm probably not going to be adding much more to this game from this point on, even though there's plenty of potential for more levels and other interesting stuff. I want to try out some of my other ideas, which won't happen if I keep working on this game forever.