Quiz Blaster

As part of the Michigan State Game Development Coursera I've made three significant changes over the standard 2D shooter that change the mechanics or what you are doing.

1. Added question and answer texts that trigger behaviors when you fly past them.

2. Added a minimap and gravity bound asteroids that add a level of urgency and tweaked the music volume.

3. Implemented distinctly different enemy classes to disincentivize wrong answers with their invulnerability.