Update v0.3.1: The Menu Update

The Menu Update (v0.3.1) is here! Here's what has changed since the previous version (v0.3):

• Added a main menu
• Added options to the pause menu that allows you to return to the main menu
  • If you try to return to the main menu while a game is not over, it will give an "are you sure?" prompt, to avoid accidentally quitting a game in progress
• Added high score tracker and other records! (records will reset with each update)
• Added an experimental mouse mode! (records will not be updated in this mode, since it is experimental)
  • Use the mouse cursor to aim
  • Left click to shoot
  • Right click to reload
  • Move with SFED keys (or keep using the arrow keys, if you prefer)
• Controls were changed so that using a gamepad now feels more natural
  • Keyboard: Z is now shoot/menu selection, X is now reload/previous menu
  • Nintendo controller: B is now shoot/menu selection, Y is now reload/previous menu
  • Xbox controller: A is now shoot/menu selection, X is now reload/previous menu
  • PlayStation controller: × is now shoot/menu selection, □ is now reload/previous menu
• Health pickups will only drop when you are not at full health, and upgrade pickups will only drop when the skill they upgrade is not maxed out.
• Changed the sound effect that plays when trying to fire with no ammo remaining.