All Proving Grounds floor mechanism locations in Eiyuden Chronicle Hundred Heroes

A complex maze of interconnected corridors, a Runebarrow, has many hidden contraptions waiting to be discovered. Here are all Proving Grounds floor mechanism locations in Eiyuden Chronicle Hundred Heroes.

Where to find all floor mechanisms in Eiyuden Chronicle Hundred Heroes

The floor mechanisms for Proving Grounds in Eiyuden Chronicle: Hundred Heroes are beyond the runestone riddles. After you solve them (and we can show you how to solve the three runestones riddle), instead of going to the helipad, just move in the opposite direction, and you'll find them.

When you first arrive at the Proving Grounds, you can see the control panel and a weird-looking room. Activating the control panel will make the room rotate, which opens new paths to go. You can see which paths are open if you follow the blue lines on the floor.

At this stage, you can only rotate the first third of the room. Setting the panel to red will open the path to the left, and following it will lead you to the helipad leading to the lower room. Following the blue line will lead you to three runestones and three lanes. Pressing the switches in the right order (left-right-middle) will line up all the stones in one lane so you can clear the mid-lane and walk through.

Related: How to break Abandoned Mine barriers in Eiyuden Chronicle Hundred Heroes

Now, this is the most important part. If you follow the blue line, it will lead you to the helipad. However, instead of taking the helipad, walk in the opposite direction, and you'll find a shining switch and some runestone wheels. Activating the switch will make the runestone move, and you'll see a cutscene showing that the second third of the room also rotates.

Now, you can take the helipad and go back to the main panel. You can rotate more of the room, but you can also use the side door to access the middle part of the room without going down the main hallway. Press the main panel until you can see the mid-right path, and then go to the first passage left. Get out from the passage left to the main corridor and head to the second passage on the right in the main room.

Following the blue line will lead you to the helipad, which will bring you to the lower level of Proving Grounds. There, you will find another runestone puzzle, this time with four stones. You can solve this puzzle the same way as the three-stone one, by lining all stones in the same lane.

When you move past the riddle, go down the blue line, but don't take the helipad yet. Instead, move away from it, and you'll find another rune mechanism. Activating the mechanism will enable full room rotation, which is another big step toward opening the Proving Ground door.

For more related articles, check out How to open Three-Symbol door in Eiyuden Chronicle Hundred Heroes on Pro Game Guides.