The HxS Gold Room is the glowing gold platform just north of Heroes Together, where the world map wraps around and the top of the Hearty Heroes of Hauling meets the bottom of Skipping Stones to Lonely Homes. Solving it pops the Gold HxS trophy.

The HxS gold room: Janaila skips pebbles on the water at left, the red warrior and green thief work the courtyard at right.
The room
The room is split in two. The red warrior and the green thief work the Heroes side on the right. Janaila skips pebbles across the water on the left.
Solution
- Make the goblin and dragon kill each other at the same moment. Push and pull the goblin, with its block behind it, into the top-left corner. Push the dragon up into the top-left as well, so the two end up within a block of one another and destroy each other. This frees two orange gems on the Heroes side.
- Turn the gems into platforms. Drop both gems into the water. They become two platforms, leaving a one-space gap to the island.
- Pass pebbles between the sides. Janaila skips out to the middle islands and sends a pebble across to the heroes. The heroes send it back so it lands in front of her and builds the floor she needs to reach the third island.
- The last pebble. Send the last pebble back to the first island, back to the middle, and across to the heroes one final time. Stand the red warrior at the edge of the gem platforms so the pebble stops short and fills the last gap.
- Finish. Both heroes stand on the pair of circles on the island in the water, and Janaila stands on her circle on the Heroes side.
Solution notes adapted from the Postmode walkthrough video (PS5 Pro, no commentary) and checked against the footage. Press undo and compare with the video if a step does not match your screen.