How to defeat H3O (Hard Mode and Lower)

Walkthrough of the fight against the last boss with images and video

Introduction

H3O is the last boss fight in Remember Me.

This is a 3 steps fight.

Phase 1: The grounds Cubes

STEP 1
First of all, you have to destroy the black cubes to be able to strike H3O. And to do that you have to use Sensen Fury or Logical Bomb on an enemy, near the cube.

So just grind your Focus and destroy it.

Hint: You need a large use of s-sensen abilities in this fight so a few cooldown combos may be usefull.

STEP 2
After the cubes cubes explosions, you will have to use your spammer on the target away.
However, every 10 secondes H3O do area damage, so simply stay in movement/dodge during it and use your spammer betwen each waves.

Hint: Mass 'light' spammers is more efficient that the 'heavy' one but take more time

STEP 3



After that you will be able to strike the first part of H3O, just spam an attack on it.

Phase 2: The flyings Cubes

STEP 1
Same as the phase 1, but more enemies, and without the Sensen Fury.

Dont panic, on the right, there is a robotic enemy, and using your RUST In Pieces , you will order him to destroy the first cube.
That's useless to kill him, he has an infinite respawn, without cooldown. However he wil shoot you, so keep an eye on him to avoid/dodge his missiles.
To destroy the cube, the logical bomb works too but you will have to place an enemy really near the cube.

STEP 2
During this phase, H3O do a large wave attack, just keep dodging From the right to the left and you will be safe.

STEP 3

Same as phase 1.

Phase 3: The invisibles Cubes

STEP 1
Once again destroy 2 cubes, but this time you will have to make them appear first.
Simply use your Sensen DOS to do it.
When a cube is visible, you are able to use your Sensen Fury against it like in phase 1.

Logical Bomb still working too.
H3O use the same waves as in phase 2.
Pay attention to shadow Strikers

STEP 2
When cubes are down, keep dodging area on the ground et use your heavy spammer on the target away.
Be carefull the time betwen area attacks is really shorter in phase 3.

STEP 3
Same as phase 1 and 2.

Conclusion

There is no QTE, and nothing more after the phase 3.
Just enjoy quietly the end of the game ;)

Achievements: Ending the game in Hard mode will reward the 3 achievements related to differents difficulties.

[Kamidere]

I found this to not just be the easiest boss battle in the game but the easiest fight

[ItsYFP]

Well, hes not too Hard at all. But great Guide!

[Sinzahn]

This boss battle was intense. Thanks for the guide!

[hunter_2006.0108]

+