Ruin A-03 is one of the Ruins that you will encounter in Tower of Fantasy. Read on to learn about Ruin A-03's level requirements, rewards, secret chest locations, how to beat the boss, and other strategies to clear it.

All Astra Ruins Walkthroughs
Ruin A-01	Ruin A-02	Ruin A-03

Ruin A-03 Secret Chest Locations

Secret Chest 1 (Easy)	Near the entrance, use the Omnium Handcannon on the cliff to climb up and reach the chest.
Secret Chest 2 (Easy)	In the room with the laser door, make a pillar to block the lasers on the left and pass through.
Secret Chest 3 (Normal & Hard)	From the location of Chest 1, climb down the cliff.
Secret Chest 4 (Normal & Hard)	From the location of Chest 1, climb down the cliff, then use the Omnium Handcannon on the wall to the left. Climb onto the pillar to reach the box above.
Secret Chest 5 (Hard)	At the entrance of the ruins, look up to the left side to find the treasure chest. Use the Omnium Handcannon to create a platform to reach it.
Secret Chest 6 (Hard)	Find the treausure chest in the area with the laser beams and the moving platform below.

Ruin A-03 Walkthrough

Ruin A-03 Location and Rewards

Map and Location

Astra

Level Requirements and Rewards

Ruin A-03 Puzzle Solutions

Use Pillars as Platforms

You'll obtain the new Omnium Handcannon Relic at the start of Ruin A-03. This allows you to make pillars on any wall which are conveniently climbable on all sides.

Create a Pillar on the Platform to Cross the Pit

In the final room, you'll find a long pit with lasers and a single platform moving across. Use the Omnium Handcannon to create a pillar on top of the platform and ride on top of it. The pillar will go over the top of the lasers and allow you to ride safely across the pit.

How to Defeat the Boss in Ruin A-03

Vulcan Boss Overview

Vulcan
Difficulty	HP	Level	Element	Weakness
Easy	3 Gauges	18	Volt	None
Normal	3 Gauges	30	Volt	Flame
Hard	3 Gauges	44	Volt	Flame

Double Jump Over its Beam

Vulcan will sometimes fire a beam in a circle around itself. You can jump over this beam with a double jump. If you dodge it successfully, you'll have a window where you can attack freely, so don't miss the opportunity.

Climb Onto the Platform when Warning Text Appears

When Vulcan's shield gauge fills up, warning text will appear on the screen that electricity will run across the field. When this happens, jump on one of the four platforms which comes out of the ground to avoid the attack.

Takes Extra Damage from Fire in Normal and Hard Modes

On Normal difficulty, it takes an extra 75% damage from Fire attacks, so prioritize switching one in for this battle.

Recommended Flame Weapons
Molten Shield V2		Scythe of the Crow	Negating Cube

Tower of Fantasy Related Guides

List of Ruins and Walkthroughs

All Ruins Guides

List of All Ruins
Ruin A-01	Ruin A-02	Ruin A-03
Ruin B-01	Ruin B-02	Ruin B-03
Ruin C-01	Ruin C-02	Ruin C-03
Ruin D-01	Ruin D-02	Ruin D-03
Ruin E-01	Ruin E-02	Ruin E-03