We found the Boss door on Floor #76 | Sword Art Online: Infinity Moment | Part 4 (Spanish)
Quest 2: Collect 3 items on Map 6 (Gather)
We can cross the sealed portal.
As soon as we leave the cave, we help the warriors fighting the Giant Spider and become friends with them.
We collect the items for Mission 2.
We defeat the Crimson Spinner on the next map.
On the next map, we follow the blue slime trails and defeat them until we reach the top of the terraces.
We face the Blue Impact before entering the dungeon.
We find the door to the final boss of Floor 76.
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