v0.2.0 now available

Changes in version 0.2.0:

• New: 2 unlockable characters
• New: 1 unlockable weapon
• New: Hyper mode for Mad Forest stage, with gold multiplier
• New: 4 achievements to unlock all of the above
• Bugfix: giant bat sprite and collision shape
• Bugfix: "duration" power-ups now have the intended effect
• Tweak: Runetracer's firing interval is not affected by its duration anymore (fires and scales faster than before)