Sudden Changes has 33 thousand installs. Users rate it well: 4.1 stars from 163 ratings.
Sudden Changes is made and published by
KYwoo.
AppBrain is an independent app data site and isn't affiliated with KYwoo.
The app name, icon, screenshots and description belong to KYwoo and are shown as
published on Google Play.
About Sudden Changes
Sudden Changes is a role playing app developed by KYwoo.
Install Statistics
Sudden Changes has been installed 33 thousand times. In the last 30 days, the app was installed 2.6 thousand times.
User Ratings
Sudden Changes is rated 4.09 out of 5 stars. The rating is based on 160 ratings.
App Information
Sudden Changes is freely available from Google Play. The app size is 12.85 MB. The latest version available is 3.0. The last update was on July 13, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since February 2025.
Description by KYwoo(from Google Play)
This is a completely free to play fan-made unofficial project based on the original Undertale™ game created by Toby Fox. All rights, characters, and assets belong to their respective owners. This game is a fan work that is not affiliated with Toby Fox or the official Undertale team. For any copyright inquiries or asset removal requests, please contact me directly at kywoo0130@gmail.com. I respect intellectual property and am fully committed to resolving the issues!
* Undertale By Toby Fox * Created By xiaoQ * Android Port By Ilka * Released By KYwoo
This game is about the Sans boss fight in Sudden Changes.
The Story: 【NO AU】Sudden Changes is a role swap following the basic rules of Storyshift with only the lost souls, along with Mettaton, Napstablook, Chara and Asriel changing positions.
Recent changes: Latest Release of Sudden Changes! SANS HAVE A GUN!
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It's nice but too hard I tried it, but there's no debug mode or easy mode so please rebalance it
★★★★☆Debra Burks· Jul 16, 2026
This game is good, but it has the lack of options like switching the joystick and buttons l was hoping if you could also add debug mode for those who struggle at some of the hard parts of the game
★★★★★Alireza B· Jun 4, 2026
I love every fan games of undertake and delta rune but... WHY THEY ARE TOO HARD!
★☆☆☆☆Oliver· Nov 9, 2025
The fight itself is good, but the QoL is awful. There's no way to configure anything. Want to play in English? Nope, gotta translate Chinese. Want to control yourself with one hand? Nope, gotta use both in a way that makes no sense. And lastly, there's no way to change the difficulty like you can in any of KY woo's other apps, leaving it nothing but painful to play in few faults by the player.
Google Play Rankings for Sudden Changes
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Technologies used by Sudden Changes
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