Hello friends, through videos, I realized the main flaws of the game, clearly the balance was very bad, since the difficulty curve was very exaggerated so several changes were made.

slimes no longer fall from the sky.
whip movement is now much faster and with increased hit frequency.
fixed a bug in the sounds of the html5 version.
The part where the mermaids appear was also modified to facilitate the gameplay.
Thank you and I hope you like it as much as I do.