Version 1.2 is now out. It's add a difficulty selection screen at the start of the game with 3 difficulties to select from.
"Make me suffer" is the hardest difficulty and is the original difficulty the game was released with. "Let's do this" and "Painless" changes up the enemies attack patterns and lowers their health to make it a bit easier.
I've also tweaked the dodge a little to make it a bit easier to avoid damage in battles.