Crimson Mind - Remake

I've come here with some bugfixes and improvements to the demo, so for those of you who haven't played yet, downloading the game again is probably a better option.

The changes are the following:

- Increased the projectile firing intervals at ambush event
- Made the difficulty change option more clear
- Put a savepoint after the ambush event so in case of death players don't have to repeat it
- Fixed some minor bugs and some typos