Perfect

This has a really really REALLY high potential and there are alot of things awesome about this game. The story was interesting but could have been more included in the game a bit. The levels introduced new enemies or some kind of obstacle. I liked the ice and fire but you could have added more other elements and I can imagine it would be awesome (but I'm pretty sure this game was made for an ice competition) but you can upload a newer version. There was a gravity glitch where I flew all over the place and ended up landing on a planet sideways and getting stuck.

I think of your whole set of planets as one world. World 1 out of 4. There could be different worlds and a bunch of different planets in each for example
W1 - Ice World
W2 - Green World
W3 - Fire World (but your team is fire though)
W4 - Dark World

That would make the game feel much longer because I was sad that I beat the final boss and the game was over because I liked the game and it was over so I was got sad. I don't know if this was intended but the background moves with the foreground which doesn't give it a feeling of depth and outter space. try maybe
background_x[0] = view_xview[0]
background_y[0] = view_yview[0]
The graphics were relaxing and you could have elaborated more on the storyline. Maybe you should continue working on it. I don't understand how this only has 3.8 stars. It should have 4.5 or something