The thing with videogame themes is that they can sound really cheesy as psytrance tracks (especially if the remixer is GMS ), but some themes could work great as pure psytrance.
Here is my list
http://www.youtube.com/watch?v=MPkhhLC1tf8
This could work great as a funky morning tune.
http://www.youtube.com/watch?v=09UAzg3Ualc
Best electronic track in videogame history. It sounds already a bit psychedelic-ish, so a proper remix would be awesome.