This game really isn't awful, but its not good either.
I played a modded version, which made more sense (and added a fUCKING MAP), but still needed to use a wiki just to know where i was supposed to go and what an item did.
gameplay wise, it's castlevania. you jump, and you whip.
hearts no longer are used for your subweapons (most of them at least...), and instead are a currency. You can also level up, which increases your health (but only on some levels?).
When you die, you get put back right where you died, but when you game over, you lose all of both.
This makes grinding almost necessary to get enough hearts to buy shit, and actually necessary if you want to level up.
The max level is 6 (and you start at 0), I beat the game at level 2.
The game's ending is also based on how many days you've taken, with 15+ being the bad end, 8-14 being neutral, and anything below 8 is the good/canon ending.
I might go back for the good end, idk.
Once you know what to do, the game probably takes like no time at all.
The problem is that you DONT know what to do EVER.
arguably the game is harder on the english translation, because of mistranslations and the fact that the manual doesn't have a map... WHY WOULD YOU REMOVE A MAP FROM THE MANUAL OF YOUR MAZE GAME.
overall, the game is ok. not good, not bad, just ok.