Undertale Boss Battles Script · Verified Source

Introduction

Flowey (Introduction): This script establishes the "Kill or be Killed" world-building. Flowey tricks the player into taking damage from "friendliness pellets" before Toriel intervenes. Undertale Boss Battles Script

In Undertale, the hardest boss isn’t the one with the most health points. The hardest boss is your own willingness to pull the trigger. The hardest boss is your own willingness to pull the trigger

11. Special Mechanic Example: Sans' Karma

let karma = 0;
Part 8: Common Pitfalls in Boss Battle Scripts
Even experienced modders trip over these: # Defending state: move to defensive position for
Technological Shift: The focus shifts to movement and item management (like using the Scythe or specific armor polish) within a 3D space, though they maintain the original's emphasis on dodging and pattern recognition.
# Defending state: move to defensive position for 2 seconds
    "action": "defending", "duration": 2
]