Beta testing is finished and I'm working on a release build now. If all goes well I'll be submitting it in the upcoming days.
To accomodate different player skills and taste, there will be four difficulty levels (hero, normal, easy and very easy). They will work like in Isle of Rebirth. The quest was designed in normal mode and it's what I'll recommend for first time players, but you'll be able to lower the difficulty in-game if you're having trouble.
What are the differences between difficulty modes? While designing Link stuck in Castlevania, oriinally I had planned Normal mode and Hard mode, which drastically altered many gameplay aspects, including boss algorithms, dungeon design, enemy placement etc. But due to various issues, such as fizzled motivation, IRL issues, Hard Mode was put on indefinite hiatus. Isle of Rebirth has Hero Mode which has doubled damage for all enemies. A Link Between Worlds also has Hero Mode (4x damage). I want to see Hero Mode do something different, like more frequent instant-killer hazards, bizzare puzzles etc. So difficulty curves of Normal and Hero modes can be seamlessly concatenated.