Probably the last small update for this game before I work on another project and/or work on a bigger content update for this game.

Fixes: 

- ACTUALLY stopped spiders from spawning on top of each other.

- Lowered the money score requirements for the money score grades.

Additions:

- The money grade icon in the main menu will now change depending on how well you did in the previous run.

- Animated the ore icon in the main menu to change to different ores.