I did a few changes to the taught stuff.
W forward
S reverse
Fuel that goes down over time and also a drop when collision (instead of instadeath)
If you die you start on same scene you died on
Camera follows ship but works much smoother in unity than webgl, might need tweaking for webgl.
Todo:
new first scene for start game
Difficulty setting on start scene, adjusts the start fuel
On death back to start scene but can select unlocked levels to go to
High score list of best fuel left of each level and difficulty.
Add more levels, increasing dficulty and uniqueness
Hope you enjoy playing it.
http://www.sharemygame.com/share/0c5be89a-1859-46c0-9e33-6812b02f7ca7