is it fair to say that this character is too overpowered? i understand feeling great about beating a level fast and having a high skill ceiling with plenty of speed to control, but there's a point where the powerful abilities that let you do this end up breaking typical srb2 level design-- that is, looking to somewhere you want to go and accidentally overshooting in some way because the characters' abilities are too extreme. the double jump is way too high, and paired with the high single jump (which is easier to achieve than me walking to the sink and getting water with phase shift) a lot of times i found myself in situations where i accidentally jump too high and/or too far and couldn't gauge exactly what to do to get from one area to the other.
i also find it really weird that the auto run just feels like... normal acceleration? in earlier versions the acceleration was higher and you could notice a difference, but now it just feels weird to have it listed as a feature when it really just feels like the status quo (and i've read the reviews, i know that goes against what other people have said but i think it's a waste of an idea to reset the auto run to normal movement. if it's status quo it should just reset to exactly that and there's nothing wrong with doing that).
my final miscellaneous thoughts have to do with the gauge as of version 1.2.1. i'm gonna keep it 100 with you, the ui for the gauge looks like a project for an intro level comp sci class. an outline would help, but the biggest culprit is having it go to the edge of the screen. it just looks out of place, like it was thrown in as an afterthought-- not actually a part of the character or its idea, but just to check off a box for a requirement you have to meet. i do understand, however, that you probably wanted to make some quick changes to your character considering all the reviews you had gotten before then, so i'm not gonna bash the actual gameplay aspect of the character for it.
but all that being said, i had fun with the character. and i do mean that. i can tell there was a good amount of work put into this project, rather than just a meme that tries to shove itself down the player's throat. if this is a first addon for you, it's a great start and you should feel good about it because it's coherent- the abilities flow into and interact with each other. granted, that exact interaction got me messed me up at first with how extreme it gets, but i noticed i started learning how to implement and control these abilities. nice sprites, fun abilities, and while i can't say i would die for this character, it was fun to check out
(also fyi, as of version 1.2.1 mizzy has an infinite jump tech where if she's completely still she can double jump forever)