Small update!

Hello again! I learned some new stuff so I went back and made some minor improvements.

- Fixed hitting the shovel causing a small freeze by preloading the material of the particles (EDIT: thought I did, didn't seem to work, woops)

- Fixed hitting the fence in certain parts causing Moley to ricochet at unexpected/odd angles

- Added a feature to keep track of and display local highscore

- Removed many large unused assets, severely reducing the filesize of the game