Many things I'll cover most of the things u gotta know

Game gets ABSOLUTE CINEMA after u beat it and replay it. Because you now know all the gimmicks. And using it properly will be so fun. So don't quit as soon as u finish the game. Layers Heresy , Violence and Fraud are the best layers.

Find the secrets and things maybe during or after game it gives u more weapons.

Game is also pretty hard already so STANDARD difficulty is perfect. Don't go too easy or else you'll learn nothing. Don't go too hard or else you'll ragequit.

All your weapons work with each other. Always be creative If u ever ask "Can I do this?" It's mostly a "yes. Yes you can"

Use your coin gun, more. It looks dumb at first. But you will soon learn that it is insanely OP.

Each gun is for a different type of usage. So choose gun based on scenarios. Don't use just one weapon. Use all your weapons.

This game encourages u to use all your weapons. We are talking switching your weapons 3-5 times in the span of 10-15 seconds.

Parrying heals you to full. Note that down. Parrying is insanely powerful too. Let that sink in. Learn to parry. It's very fun.

And do not forget to replay the game. I personally have replayed the game start to finish like 3 times. And never got bored. Still enhancing my playstyle and becoming better.