Thank you very much :)

Probably, once the jam is over, I'll upload a "remastered" version of the game to my dev page with all the bugs fixed and some other features we didn't have time for.

Well, you should be able to tilt the spacecraft which will affect your altitude and you can try to use sudden shifts in your up/down direction to evade the bullets. Sorry for the late reply.

If you press Space immediately after spawning in you should get a good start.
If the actual Space Button doesn't work, I imagine the problem is on your side, but I'll take a look in the code anyways.

Thanks for your feedback!