Unintuitive UI, the UX is not well designed, the Tutorial is a wall of text.
I can see lots of potential here, but in the current form I just felt it failed to keep me interested.
There's a huge bug right after the part with the huge laser descending from the ceiling.
If right after entering the door you go left instead of going right you start walking between other levels
AI is awkward ... enemies have instant reflexes and no chance of missing a direct shot, you can't do that!
The amount of credits earned is far too low to get at least 5 upgrades until the end of the campaign, moreover EVERY enemy weapon is far more dangerous than any of the starting weapons. That results in continuous instakills by the enemies.
The music is absolutely unnerving ...
Clicking the upper-right corner after ending cutscene will let you see the end cutscene over and over, even if the button is no more there.
 "Heart of Galaxy Beta"){kind=icon}
 "Infinity Inc"){kind=icon}
 "Mu Complex : Episode One"){kind=icon}
 "Raze 2"){kind=icon}
 "Epic Creature Hunter I"){kind=icon}
 "Idle Tree"){kind=icon}