Create a Minecraft mod where the player receives a one-time-use item that permanently makes them Sans from Undertale. Once used, the item becomes soulbound, disappears, and cannot be reused, dropped, or transferred. The player is now always Sans and cannot return to a normal state. The mod is allowed to use vanilla Minecraft potion effects and attribute modifiers to handle stats, abilities, and scaling.
After becoming Sans, the player's base maximum health should be set to exactly 1 HP by default—this is not done using status effects or temporary modifiers, but by directly setting the player's base health attribute. This reflects Sans’s canonical fragility. However, with each level gained, the player’s max health, base attack, and defense increase, making them stronger over time.
The player gains access to a visible stamina bar UI, which is always displayed on-screen. This stamina bar is used to dodge attacks and regenerates over time. It behaves like an energy meter: dodging consumes stamina, and the bar fills back up gradually when not dodging. The player can toggle the dodge system on or off at any time using the /dodge command.
The player is also assigned a random Soul Trait—such as Determination, Justice, Patience, Bravery, Kindness, Integrity, or Perseverance—each granting passive buffs or effects. The player begins at level 1 and can progress to level 20 by gaining experience through combat. Upon leveling up, Chara speaks directly to the player with cryptic, taunting, or dramatic lines. Every level-up increases the player’s strength, defense, and max health.
Once the player reaches level 20, they must use the /reset command to restart at level 1, gaining a permanent EXP boost with each reset. After 5 resets, the player evolves into a more powerful AU version of Sans—randomly chosen from Bloodline Sans, Shatter Sans, Voidstep Sans, Soulburn Sans, or Chrono Sans. These AU forms are power progressions built on top of the player’s base Sans state, granting stat boosts and unique abilities.
After 10 resets, the /truereset command becomes available, granting access to True AU versions: Overcode Sans, Oblivion Sans, Genesis Sans, Deathcore Sans, or Mythos Sans. These represent outversal-level power and greatly enhance the player’s capabilities. At this stage, leveling becomes slower to preserve challenge and scale.
Eventually, the player unlocks the /timelinereset command, which grants access to three powerful cosmic resources: Conduit Souls, Nexus Code, and Cosmic Essence. Conduit Souls are souls that represent fundamental concepts of existence—like Time, Destruction, Identity, or Creation—and turn the player into a living embodiment of that concept. Nexus Code is the logic behind multiversal structure, granting control over causality and rules. Cosmic Essence is pure energy from collapsed timelines, used to unlock ultimate power. Once all three are collected, the player reaches their final evolution as a Conceptual AU Sans, randomly chosen from: Paradox Sans, Nexusflare Sans, Eclipse Sans, or Apotheosis Sans. These are not transformations, but stacked layers of strength added to the player’s permanent Sans identity.
The mod must also include a /status command that displays the player’s level, base stats, Soul Trait, AU identity, reset count, and cosmic progression. All commands—/reset, /truereset, /timelinereset, /status, and /dodge—must function properly and unlock only when appropriate. Level-ups must always increase base stats through attributes or effects. Chara must speak to the player on every level-up. The stamina bar must be clearly visible on-screen at all times and function as a true UI-based energy system.
The mod should feel like a complete progression from fragile 1 HP Sans to a cosmic concept, with persistent growth, high challenge, and meaningful power scaling.