this a survival fight you can in fact no-hit this undertale fan game hit e for easy mode which only gives you regenevration regenerration for 5 hp every 10 seconds 75% made by me also if you get the bad ending, which has a 5% chance of happening once you win or if you no hit it ,then there is nothing I Can do about it
thanks @fnafpersoniii for the bone engine and @DaBestMarioPlayer for the gaster blaster engine and the soul sprite and code