While technically a fan-game, Last Breath includes an advanced battle simulator. It allows you to fight against custom waves of enemies. While you cannot code new enemies directly inside the app without file editing, it is the gold standard for playing high-quality custom battles on Android.
The most significant content for Android users is the existence of ports. Unitale is a popular PC engine that allows users to create custom Undertale battles using Lua scripting. undertale battle maker android
The ability to share your creations and download community-made fights. While technically a fan-game, Last Breath includes an
Since the Android app is a sandbox, you can build your narrative through: While technically a fan-game