Haha! WEll yes, I admit It might be more challenging if the bosses have had more health. As for the stats, the lvl up system happens every time of the kill and gives the premade stats what you can exchange again before fight. Originally I planed to not make a lvl-up, but than the stats would go even more insane. Imagine like getting the same ATKspeed * 2 buff for 5 times in a row! Haha!
Thank you for trying out! ^^
(I know a lot of things could be more polished, but I didn't have enough time 😅)