Ok, now to my feedback.
First try was a little weird because I was not able to steer on my 144 Hz monitor because it seems that you have not made your code framerate independent. So you should give google a try and learn how to implement this ;)
I then switched to my 60Hz monitor and the turn speed was still a little two high, After the playthrough I found out that I can change it in the settings, but I would not make this a setting, because this can drastically change the difficulty of the game. This is one important part of playtesting and tuning a game.
The rune system was a little weird, because you had no idea what rune had which meaning, but you got used to it.
There should have been more levels, but I think the time limit is to blame at this point, which is ok.
I have no idea why you added the new game plus mode. It was a good laugh after spending all my runes on player speed and bullet speed, because you could glitch through the wall and you were unable to hit anything because your bullet were too fast :D
But hey, it was your first game, and you can really be proud of it. Keep making games and always try to improve yourself ;)