While I was trying the aestethic to replicate Gameboy feel I found this combination of filters and I liked it too much.
As for what your are saying is right, balancing has been the most complicated issue because I wanted the player to see this mechanic clearly as you can rack up many ammo if you shield chain the enemies shoot, I feel I pointed to heavily on the new things and less on the more traditional shoot em up. If I continue development on more levels I would love to introduce more traditional playstyles in the game and the regenerating ammo could very well be a great all rounded for balance as not all the scenarios can be envisioned and that can take out the frustratrion for some situation!
Thank you for playing!