V0.3.1 Release

-- Changes --

-- Added game mode menu.

-- Added (non-functional) choices of 3 and 4 players to the number of players menu.

-- Confirming or cancelling a menu selection can also be done with the bottom button or right button on the gamepad controller respectively.

-- Pause menu has been added, which is separate from the inventory menu. During the game, press backspace or the back button on the gamepad to access it, which lets the player return to the game, go to the options menu, or quit the game.

-- Removed the hidden ability to return to the title screen from the inventory screen.

-- Added the current game seed to the inventory menu.

-- Added half heart and half mana star pickups.

-- Reduced the duration of the Medallion of Midas from 10 seconds to 5 seconds.

-- Added Bomb Stack passive item, which adds up to 99 bombs.

-- Added unfinished basilisk, flame sorceress and flame skull bosses.

-- Added Amulet of Bomb Protection, which grants immunity to bomb explosions.

-- Added Ethereal Shot item, which allows weapon shots to pass through solid blocks.

-- Added empty Crystal Room to the final floor of Wind.

-- The game now reads a config file to initialize window scale. Generates a config file if one is not present.

-- The game now generates an empty achievements.txt and unlocks.txt file.

-- Bug fixes --

-- Fixed a bug where the Quartz passive item was not spawning.