Undertale Boss Battles Script

Here is a Unitale boss script skeleton:

Whether you are coding in GML for a fangame, Lua for a CYF mod, or Python for a fan remake, remember Toby Fox’s golden rule: Undertale Boss Battles Script

// Condition 2: Is HP below 30%? if (hp < max_hp * 0.3) can_spare = true; Here is a Unitale boss script skeleton: Whether

// Script: check_spare_logic() function check_spare_conditions(){ var can_spare = false; // Condition 1: Did the player ACT three times? if (global.act_counter[boss_id] >= 3) can_spare = true; Karma removes them

// Script: karma_effect() function apply_karma(damage){ // Normal i-frames = 60 frames. Karma removes them. if (object_player.invincibility > 0){ object_player.invincibility = 0; } object_player.hp -= damage; // Poison drain object_player.karma_drain = 5; } A boss script isn't just logic; it’s the bullet hell renderer. In Undertale , bullets are typically objects stored in a ds_list . Here is a script to spawn a Mettaton-style laser grid: