Rogue Galaxy

Once you have completed Chapter Five of Rogue Galaxy, you will unlock this trophy.

Chapter Five - The Master Hacker

Objectives to complete this chapter:

1. Go to the Galaxy Corporation’s Front Desk to speak with MIO.
2. Enter the Starship Factory located near the East Side.
3. Find and obtain the Factory Key from a treasure chest in the Assembly Line 1 and use it at the Thinking Circle to exit the room.
4. Enter the Assembly Line 3.
5. Boss Fight: Assault Walker x3
6. Find and obtain the Factory Key from a treasure chest in the Assembly Line 3B and use it at the Thinking Circle to exit the room.
7. Boss Fight: Johnny Robot/Johnny Robot DX
8. Return to the Galaxy Corporation and speak to MIO.
9. Return to the Control Room of the Dorgenark.

Boss Fight Strategy: Assault Walker x3
 

The Assault Walkers begin the battle with shields, so quickly break the shields by using charged physical attacks on them to remove the shields. To execute a charged attack, press and hold until your character begins to glow, and then release the button. When their shields are down, you’re free to attack them. Use Lilika’s Warrior God’s Cry and Jaster’s Illusion Sword to inflict major damage. Furthermore, the Assault Walkers are weak to lightning attacks, so using Steve’s Electro Punch ability would be wise.

Boss Fight Strategy: Jupis Robot/Jupis Robot DX
 

This battle is divided into two phases. In the first phase, Jupis Robot will have an unbreakable barrier that nullifies all damage. There is no way for you to destroy this barrier so you must simply survive. Set your team’s command to “Step Away” (press and then to change your team’s command) and run away from Jupis Robot’s attacks, block with and heal often if any of your characters are damaged. After surviving long enough, a scene will occur where Dr. Poccachio gives Jaster the Barrier Break Shot. Enter the menu with , select “Change Equipment” and then “Subweapon”, and equip Jaster’s Barrier Break Shot. You can now destroy Jupis Robot’s barrier with , and finally attack it. Use Lilika’s Warrior God’s Cry ability, Jaster’s Illusion Sword and Steve’s Electro Punch to deal heavy damage. Jupis Robot likes to move around a lot, so you will spend a lot of time chasing it. If the Jupis Robot restores its barrier during the fight, use the Break Barrier Shot to get rid of it in order to deal damage again.
 

After causing enough damage, the second phase of the battle will begin, and Jupis Robot will become Jupis Robot DX. There is not much of a difference other than the fact that this one has no barrier, but its attacks becoming more powerful as well as receiving a defense buff. Continue battling it like normal, re-applying buffs on your party and healing/reviving as needed, and you will emerge victorious.