Changes:
-Added a quick restart button "R"
-Saves progress when quick restarting, returning to menu, and retrying from game over screen instead of only saving when you exit through main menu "Exit" button.
Known Bugs:
-Bumping into the same mine multiple times resets its explosion timer.
-Sometimes a mine's explosion will not be triggered when touched.
-Projectiles may still be "alive" when restarting or exiting to menu.
Thank you all for the support :)