Pre-Release Build v0.9.4.3

After several iterations, here are some more changes:

• There's achievements now! They should all be working, but I'm going to be testing them some more this week, so the conditions may change ever so slightly.
• Fixed an issue with cannon timing sometimes being off. They should be super consistent now.
• Swap some secret heads around.
• Fixed a small graphical glitch.

Almost there! Such hype!