Super hard, but also super fun. It must be addicting because I ended up playing a long time trying out different strategies. I settled on making a "grid of death" and navigating between "safe" spots Fun game!
Nice, I think that strat is pretty good! I enjoyed 'the guillotine' where you'd stack bullets together in groups of 2 that would kill angels quickly (but also would kill you if you messed up). The 'Center Box' strat is probably what we found the most success with in practice though!