Slimey alpha 3 (v0.0.3)

Woah! The game looks completely different now!

New stuff:

• New video options UI
• New audio options UI
• Difficultie
• New gamemode UI
• New "Back" button
• Lives hearts
• New menu UI
• New options UI
• Checkpoints

Technical changes:

• Options are now shown with checkboxes
• Volume is now shown with a slider
• You can change the darkness of the game
• You can change soundeffects volume only
• You can change music volume only
• Removed mute, since you can just set the volume to 0
• Removed music mute, since you can just set the music volume to 0
• Removed effects mute, since you can just set the effects volume to 0
• Difficultie is 0, 0.5 or 1
• At a lower difficulite, more food will spawn
• Damage is calculated with the formula "30 + Difficultie * 20"
• You can select the difficultie for storymode
• You can use the back button or "escape" to go back
• Next to the inventory you see the amount of lives you still have
• The amount of lives depends on the difficultie
• Removed super food
• There is a button at the menu to go to the shop
• New save and quit system
• You can buy and equip sknis in the shop, instead of in options
• Changed HP line in debug info
• All skins are 500 coins each
• Added checkpoints
• Progress is saved after quitting

Bugs fixed:

• [Bug S37] there is an random object inside the door in level 1.20
• [Bug S2] Background glitch
• [Bug S29] You cant remove most of the PA blocks
• [Bug S30] multiplayer doesn't work at all
• [Bug S38] Heart guy is always visible in the resources
• [Bug S26] everytime you launch the game and go to Slimey Studio, you get the achievement