As far as it goes and seeing recent rates and reviews of this thread. Based on information from dev's patreon and discord server:
The game is being developed at UE4, not RPGMV or Ren'Py, by a one single person, also there are some who not only support dev on Patreon but voluntarily helping with testing before updates. Hardware of dev aren't the best, his PC specs below avarage.
It's been 2 years since first "side-scroller" release. "For 2 years of playing" many things have changed. Especially, after initial project has been lost. The reason is obvious - Russian invasion. So it's more appropriate to say "for 1 year of playing". But as you can guess, dev suffered some issues with power supply. Have you tried to develop some kind of a project with constant power issues ? How will power cut off affect you and your project while, rendering, baking, compiling etc ? So it's even less than a year. And for the guy below with nickname "Nice Kitty", who probably hasn't been following the project since it's release, the guy who has words "From Russia" in his profile - It's quite inappropriate to say something about progress of current project.
There're many other projects being developed for about 5 years and more. They have few updates per year, or/and aren't for a public use, having few grands of support per month on different platforms. These updates consist of very few new animations and bugs fixed.
There're issues with bugs and responsiveness, with UI/UX and many other things. But work goes on despite of any obstacles. There is a lot of new things with every update, it's far from being perfect, but I hope it will get better.
So my honest rate is 4.
And about size of boobs - man cmon. There is a huge amount of games with females who have abnormally HUGE boobs. There are also many users whining about bugs and other staff who have never ever tried to develop something it's not that simple. If u've found a bug, just say how u got it and it will be fixed. If you want bigger boobs, bigger ass, a schlong or hoofs - you need also to adjust every piece of cloth and every animation for it. It's a long process to make it all alone so have a patience, especially when u have a product for free.
Also I saw some whining about "slow" "weak" MC, escape system A and D keys have almost 0 impact. Man cmon - you can increase your lvl, with lvl you can increase stats such as move speed, and any other stats.