1. Space Walls
   Flik
2. Caverns of Mars
   Xerol
3. The Dark Side of Uranus
   Suzumebachi

Flik made me pee my pants.

1. Hardcore Space Fucker
   DJNipplesNClits
2. Caverns of Mars
   Xerol
3. SumSpace
   starla

Everyone sucks at the theme except Nips 'n Clits

starla and Xerol at least made OK songs.

1. Space Walls
   Flik
2. SumSpace
   starla
3. The Dark Side of Uranus
   Suzumebachi

Of all the entries, Flik's is the closest to what I'd actually listen to whilst traversing space and time.

Starla's isn't very developed, but fits the theme the best out of all of these.

Suzu missed the whole "high energy" part, but its definitely space muzak.

1. Space is Sexy
   JigginJonT
2. The Dark Side of Uranus
   Suzumebachi
3. SumSpace
   starla

I really don't have much reasoning behind my choices, other than they were awesomeness.