EDIT: Turns out you just need to have 3 health or higher when you finish, so try to get those hearts in the board game! You CAN get hit during the fight, just don’t go below 3 health. The first 2 tips will still help with getting the level done easier!This achievement is actually pretty easy. There are some tricks that aren't so obvious at first that help.
Tip 1: Getting any number on the dice In order to get a certain number, single it out in the rotation on the dice and get the rhythm in your head. When the number comes double tap
to jump and parry almost immediately. You usually want to do this milliseconds before the number comes up. Once you get the timing down you will get it every time.
Tip 2: Choosing your stagesJust choose whatever you're comfortable with. I went from stage 3, to 5, to safe, to 8, to safe, to finish each time as I found that path the easiest.
Tip 3: King DiceYou can parry the same card twice if the next pink card is out of parry range. On normal difficulty I don't believe it is necessary as the pink cards seem to be spaced out well enough, but just in case this helps you then the option is there. The charge shot is the strongest i believe so that may be the best to use. I ran an invincibility super just to cheese one of the card rotations. Ther's also a safe spot behind his hands but this may be hard to consistently enter without getting hit. I recommend instead waiting at the opposite side of his hand each time and at the last moment begin parrying the cards.
This may still take a few tries, but you'll get it eventually. It's not too bad.
This video is not mine, just an example since I don't have a capture device where i am living currently!