The whole point is exploring the games yourself and not just copying methods someone else already discovered before you. Just 1CC your way from the very first moment and never look at strategy guides nor youtube videos.
If a new arcade shmup comes out and you start by looking at a strategy guide for advice how to beat the last boss, you are destroying the experience.
And if you want some deeper, fighting game inspired beat em ups try Aliens vs Predator and Battle Circuit. (Both by Capcom BTW and you can see the inspiration.)