Purchase Game

The Legend of Heroes: Trails of Cold Steel III

Heimdallr Tunnels Monster

Ben Chard
Shane Williams
Date Type Client Reward AP
7/16 Required City Hall 5000 Mira 4

Accepted the quest at the start of your 7/16 - Field Exercises Day 2 (Morning), then progress through the story until you reach the Mega Kraken in Heimdallr Underground 3.

Boss: Mega Kraken

Begin the battle scanning the kraken, then activate sledghammer and work on getting it into the break status. Once you’ve achieved this you’ll want use Wind Blade along with normal attacks until his next turn, then finish it off with S-Crafts.

After you’ve defeated the Kraken the Heimdallr Tunnels Monster quest will be completed. Upon completion you’ll gain 5000 Mira.


User profile pic
Welcome Guest

Guide Information

  • Publisher
    NIS America
  • Platforms
  • Genre
  • Guide Release
    20 February 2020
  • Last Updated
    31 January 2021
    Version History
  • Guide Author
    Shane Williams

Share this free guide:

Join Rean on an adventure through Erebonia, where you'll embark on new journey as a Thors Branch Campus Instructor. Here you'll explore many locations, face old/new enemies, and find many treasures that give you an advantage in battle as well fancy clothes to help you look the part.

The guide for The Legend of Heroes: Trails of Cold Steel III will include all there is to see and do including a walkthrough featuring where to find all Side/Branch Campus Quests, Chests, Books, Cards, Recipes and more. Including in depth guidance on how to beat every boss as well as how to solve and conquer all dungeons.

Inside Version 1.1

  • 100% Walkthrough
  • Trophy Guide/Roadmap
  • Characters
  • Appendix
  • Fish Locations
  • Vantage Master Cards Locations
  • Recipe Locations
  • Book Locations

Get a Gamer Guides Premium account: