Thanks for playing!!! I'm glad you enjoyed it so much!!!!
I'm not entirely sure what's causing the pixelation, but it seems to be directly correlated to how big your monitor/display is. The level design was also a bit of an afterthought as I spent most of my time with the mechanics, so it's definitely first on the list for a rework in the post-jam. The issue with you dying is less of a bug and more me forgetting to turn off the collision of the enemy once it's been shot lol. Definitely should've done that.
I'm really happy you enjoyed the game so much regardless!!!! Keep posted as we're working on the post-jam now and hopefully it'll be done in the coming months (we have a lot planned!)