itch.io

I think there should be something like batteries  because the shield die practically instantly in the later levels and I think there should be some way for this to be stopped.

The only problem with that is that in the later waves the enemy absolutely destroys armor blocks, with some enemies destroying one by one uranium armor blocks in one shot. This makes your strategy kind of hard to execute well. Other than that, yeah it would work, but more for the early waves.