I did use Shields though! Using hyper (which i can fill the meter of on the top left, 3 times) also activates shield. Saved my ass couple times (like against Himes Sword fan attack thingy)
The tutorial tells you, thankfully. Basically, you can dash through small bullets and lasers, while you can't do that against big ones and ''physical objects'' (Missiles, bombs etc.). Attacking stops dashing though, so you can'T just dash 24/7 to evade everything, so getting hit by those bulled filled screens is very possible xD
Hime's fight had a gimmick though that i only found out thanks to the discord server of Suguri. Bascially you can dash through all her Red Attacks, while you can't dash through her blue attacks. And she mixes both, so you have to spot Red attacks and go to them.
Knowing that made the fight alot easier. Was still pretty damn tough though xD