If you’re playing AI Limit and want to find the secret Ursula boss fight, this guide will help you. This article explains how to get to Ursula’s boss fight in AI Limit with clear steps and tips. Ursula is one of the toughest bosses in the game, and reaching her location requires careful navigation through the Research Center.
To reach Ursula, you need to start from one of two main areas: Factory Bypass or Assembly Hall. Both paths eventually lead to the Research Center, where Ursula awaits. Factory Bypass is located in Outer-Wall Ruins, while Assembly Hall is accessible after progressing through earlier parts of the game.
Easy Steps to Reach Ursula’s Boss Fight
Starting from Factory Bypass

Start at the Factory Bypass teleport point in Outer-Wall Ruins. Move through the area, taking down enemies or skipping them if you prefer. You will see a big robot ahead, and you can either fight it or pass by quietly. Keep going forward until you reach Assembly Hall.
Starting from Assembly Hall

Begin at Assembly Hall and walk through the hallways and platforms. You will eventually come to a long bridge over a deep pit. Look below the bridge, and you will notice pipes with glowing items on them.
Getting to the Research Center

On the bridge, carefully jump down to the nearest pipe. Then, drop down again to another pipe that has an item on it.
Make sure to heal between jumps so you don’t get hurt from falling too far (it’s a good idea to have at least 30 health points).

After landing safely on the platform below, go into the hallway that takes you to the Research Center area.
Once inside the Research Center, activate the checkpoint near Ursula’s arena. This ensures you’ll respawn close by if defeated during the fight. Equip gear that provides strong protection against Physical and Fire attacks since Ursula uses fire-based attacks in both phases of her battle
Tips
Avoid fighting Ursula until completing soil sample collection for Delpha if aiming for certain achievements or trophies.
How to Beat Ursula Boss In AI Limit

Phase One: Hunter of Bladers
Ursula begins as Hunter of Bladers and uses fast sword combos combined with fire attacks. At half health, she gains a second sword and becomes more aggressive with dashes and grabs. Avoid her double dash attack carefully since getting caught can lead to massive damage.
Phase Two: The Mutated Form
In her second phase, Ursula transforms into a mutated form with Necro abilities and piercing attacks. She gains ranged fireball attacks and a scream that causes Infection status. Cure Infection quickly to avoid fatal strikes that deplete your Sync Bar. Stay near her sides to dodge tentacle swings and piercing moves effectively.
Rewards
Upon defeating Ursula:
- Receive Mutant Blader Nucleus, which can be exchanged for rare weapons like Red Deer or Mercy Katana.
- Obtain key items such as Living Seed and Laboratory Key.
This guide explains how to get to Ursula’s boss fight in AI Limit while providing tips for surviving her challenging phases. Follow these steps carefully to find her hidden location in the Research Center.