dont play this game on more than 60Hz. I have a 240Hz monitor and i kept taking damage on every jump, which made this game impossibly difficult :D. I now set my monitor to just 60Hz and it works fine now.
Viewing post in (WIP) Hailey's Treasure Adventure comments
Honestly... I thought that was part of the gameplay and I actually completed the game as it was. I just carefully minded how and when I would jump, because I genuinely believed until now that "fall damage" were included.
I simply farmed the first levels until I had enough money to afford the health upgrades and "tank" through the damages related to a fall.