Just gems, enemies and a bit of AI music

Remember when games were simple, when all you had to do was run around the level collecting gems and avoiding the enemies? There was no story to get in the way, no stats to remember, no confusing gameplay. Just gems and enemies. Its my Birthday today (18th of August) and I wanted to release a simple game where you had to collect gems and avoid enemies before the time runs out. This is a minimalist game, dont expect to be able to write long evolved essays on the gameplay on this one. However, I had to do something to bring it into the 21st century so this is a 6 degree of Freedom (i.e. flying a...