Update 0.3

A massive update, with many new features I worked on during the Major Jam!

• Items - several different types of items were added, scattered throughout the dungeon. They'll provide some much needed help in reaching the end of the game, because it now has...
• Multiple levels! In both previous versions, there was just one level. Now there are multiple floors standing between you and the end of the game!
• Randomly generated levels! Previously the one available level was always the same. Now the labyrinth's layout is random, so you never know if there's a snake around the next corner.
• A new enemy type - skeleton archer. It shoots arrows, it kills stuff. And not just Theseus.
• Traps. Saying anything more would be a spoiler I guess.
• Many other new animations, sounds, particle effects, a completely redone wall tileset, many bugfixes and performance improvements!