Some things I noticed:

Kikuchiyo when doing a match with herself (like AI vs AI)
the intro will stuck never able to start the game unless you press a button.

Although I hope you or someone could do a patch that removes some of the stuff related to the assist system.

any plan to let Kirakira have it?

Kirakira has been given a substantial update. This is to achieve parity with Kuma's release, fix a few bugs, and rebalance her moveset a bit.

You may notice the hefty increase in her filesize compared to her last version. That was because I was originally using her as a test character for making Kuma's assist system, and as such she has all the sprites and code of Kuma's assists in her file too. I was originally planning to make it so that all Dohna characters would be able to use the same system to call other Dohna characters for joint attacks. However, the further I went along making it the more I realized how much work would need to be done to keep it updated for every character. In the end I decided to scrap the idea of making the assist system interchangeable with each character and keep it exclusive to Kuma. I thought it'd be a waste to scrap it on Kirakira though, so I kept it in as an optional toggle in Config.txt for the players to turn it on if they want to. It's set off by default.

The assist system was originally meant for Kuma, and was not balanced for Kirakira's use. There may be bugs or balance issues if you turn on the assists for Kirakira (such as being able to call herself for assists). Her AI uses the assists just fine regardless, if it's activated.

Simply amazing!

- Fixed Burst incorrectly always launching enemies towards the right
- Fixed Killer Pain and Killer-go-round causing crashes in Simul Mode when hitting two targets
    - Killer pain now only ever effects one enemy
- Added graphical player arrows for out of height bounds, and simul mode situations
- Sped up the Killer World cutscene a bit
- Slightly modified the frequency that "Hurt" voice lines play
- Renamed AIConfig.txt to Config.txt
- Implemented censored versions of special KO sprites (white ray of light variety), to be slightly more worthy of the NSFW tag
    - In addition to this, added a new setting in the Config.txt file to toggle special KO sprites on/off
    - Made special KO portraits horizontally flip properly when on P2
    - Note: If you previously downloaded the R18 patch before, it is necessary to redownload it for this update
- Added partner intro compatibility with other Dohna characters
- Shifted the .st categorization of some states
- Renamed some moves within the readme

found a couple of bugs along the way, so here ya go...
- activating Overhead Chainsaw Swing precisely after Killer Peach will make her either float up or (rarely) down for a bit

- in debug she displays a remappal error saying not having a dest Pallette 1,4

-during certain intervals in battle KiraKiras air attacks against certain oppnents will cause them to either float up or liedown indefinitely making them unbeatable

Also, I'm cusrious to know about your sprite ripping method.

the only dissapointing was that it isn't a NSFW char,she is always covered and never showed something ,i don't know if prudes are ruling or trying to change definition (happened in another site) but from what i know NSFW is something that shows either genitals or have something sexual but if is covered it isn't.

- Fixed using Overhead Saw after Killer Peach causing Kirakira to float
- Made chainsaw sounds stop when cancelling out of Killer ride
- Fixed remappal error console message
- Added missing landing dust effect from her intro
- Extended the duration of how long the Firecracker item image shows when taunting
- Nerfed Killer World, by halving the amount of passes allowed before failing (10 basically guranteed hits)
- Slightly nerfed power gain of Killer Pain
- Modified or added more info to readme file

v1.04 (Oct 3, 2020)
- Increased cost of Infinite Blast after initial free one (1000+ power per use)
- Applied damage dampening to Assistant damage.
- Hide Assistant Icons during final hit of "Ashes to Ashes, Dust to Dust"
- Lowered the height of camera zoom position during final hit "Ashes to Ashes, Dust to Dust"
- Disabled leftover DebugDisplay code

v1.03 (June 05, 2020)
- Fixed Dragon's Assist Icon not showing when playing on p2 side.

I can't find link in your website.

1 bug
2P side the support char doesn't shown

2 too overpowerd

Nice Work
I think you can disable the bg/fg and pull the characters to the middle of the screen when Mora is performing Ashes to Ashes, Dust to Dust.