Ok I had to rewrite it all over again since my computer crashed.
I have played it for about 25-30 minutes.
It started out real slow for me. I guess you ramp up the difficulty based on how many pick ups you get, but I kept getting the pick up from the enemy which was right at the bottom of the screen. Happened to me for like 4-5 times in a row. And since you take a lot of time to kill enemies in the start it was slow.
After I started picking up the power ups (and also avoiding killing them when they are at the bottom) it took only one minute for me to be a god of destruction.
I don't know what is the limit of the pick ups but I guess I was well over the limit. At this point it wasn't difficult at all. I just played to see what's more.
Overall I enjoyed it. 30 minutes of playtime for a jam is a lot. I think I would want it to be more fast in the beginning and more difficult at the endgame.
Well done!