Small improvements and bugfixes, that where not ready in time for the GameJam.

• ✨ ADD flip sprites depending on movement (left, right)
• ✨ ADD volume setting
• 🐛 FIX load "BitPotion" font correctly, if not installed on the system
• 🐛 FIX diagonal movement speed (cheers @cricketHunter for the suggestion)
• ♻️ IMPROVE collision box of some sprites

before

after