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You are an astronaut floating through space avoiding and protecting yourself from space debris using your shield and jetpack.
Your shield loses power and can only be recharged by boosting which uses up oxygen and increases your speed making the game more difficult.
Oxygen also acts as your health bar. This can be replenished by not boosting or using your shield.
The ship in the opening is used as the catalyst for the narrative but also in the mini tutorial section to help teach the mechanics in a safe environment.
The scoring system allows you to track progress whilst also making you aware of an end goal rather than just numbers.

Third-party resources
Unity free license.
Music produced by Kevin Macleod at freepd.com
Sounds from as3sfxr created by Tom Vain at http://www.superflashbros.net/as3sfxr/.

Contributors
Ben Martyn for playtesting, Alice Fayter for art consultation and Daniel Holmes for everything else.