Hey, a bunch of people mentioned there was no way to return to the mainmenu without quitting so I fixed it.

• Added "Mainmenu" button to the menu, this button puts you back in the main menu and saves your progress, turning the "Start!" button into a "Resume" button.
• Added a "Clear progress" button under the "Clear highscores" button for, well, clearing your progress.

I only tested this briefly but there didn't seem to be any issues, let me know if you find any!

Thank you guys, I had no idea how well this game would sell given the extreme locomotion but it seems to be fairly universally loved!