Hypotheses on the Symmetry between Vision and Hands
Your right hand gets it. Your left hand won’t cooperate. Control two characters independently—one with each hand—in this single-player action game. Move, jump, and dash your way through the confusion, then savor the moment it all clicks. Your experiment starts here.

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About This Game

Your right hand gets it. Your left hand won’t cooperate.

You mean to move one character, but move the other instead.
Focus on one, and you lose track of the other.

All you have to do is guide two characters to their goals.
The catch? You control both of them yourself.

Control two characters independently with your left and right hands in this top-down action game.

Your left hand controls the man connected to the red line. Your right hand controls the woman connected to the blue line. Move, jump, and dash as you coordinate their movements through each stage.

In this experiment, we will measure the ability to transmit information from vision to the brain and from the brain to the hands using a game. We will also verify the improvement in this ability through repeated trials.

The game involves controlling two hands, one with your left hand and the other with your right hand, to reach the goal on the stage. The hands can change their movement direction, jump, and run.

While the game is primitive, controlling two characters independently with separate hands may cause significant stress to participants. Please do not continue the experiment if you find it too stressful, and take breaks as needed.

Two colors. Two characters. Two goals.

Each stage features mechanisms associated with red or blue.

Discover how each character interacts with the matching mechanisms as you make your way forward. Guide the man to the red circle and the woman to the blue circle. Get both to their goals to advance to the next stage.

Simple controls. Surprisingly uncooperative hands.

Either character looks easy enough to control.
Try controlling both, and the confusion begins.

Which one should move? Where should you jump? Which hand are you focusing on right now?

You can see what needs to happen. Getting your hands to do it is another matter.
That disconnect turns familiar moves and jumps into a fresh challenge.

Detailed information about the game is provided below. Please review it before participating.

Game Rule 1: Character Control

In the game, you will control a male hand with watch connected to the red line with your left hand and a female hand with bracelet connected to the blue line with your right hand. You will use their movements to progress through the stages.

Keyboard

  • Change direction for left hand: WASD

  • Jump for left hand: F

  • Dash for left hand: C

  • Change direction for right hand: OKL;

  • Jump for right hand: J

  • Dash for right hand: M

  • Open menu: ESC

GamePad(Xbox)

  • Change direction for left hand: Left stick, D-Pad

  • Jump for left hand: Left trigger

  • Dash for left hand: Left bumper

  • Change direction for right hand: Right stick, Face button(XYAB/○△□×)

  • Jump for right hand: Right trigger

  • Dash for right hand: Right bumper

  • Open menu: Start button(XBox:Menu/Switch:+/DualShock:Option)

Game Rule 2: Goal

Each stage in the game has a goal. The red circle represents the male character's goal connected to the red line, and the blue circle represents the female character's goal connected to the blue line. Reaching the goal will advance you to the next stage.

Game Rule 3: Gimmicks

There are gimmicks corresponding to each color.

Try interacting with them using the hand of the same color.




Videos & Livestreams

You are welcome to post gameplay videos and livestream this game.
Please include a link to the game’s Steam store page in your description to help new participants discover the experiment.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel(R) Core(TM) i5
    • Memory: 4 GB RAM
    • Graphics: GeForce RTX 2060
    • DirectX: Version 11
    • Storage: 500 MB available space
    • Additional Notes: Requires a 64-bit processor and operating system
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel(R) Core(TM) i5
    • Memory: 4 GB RAM
    • Graphics: GeForce RTX 2060
    • DirectX: Version 11
    • Storage: 500 MB available space
    • Additional Notes: Requires a 64-bit processor and operating system
    Minimum:
    • OS: macOS Sonoma 14.2.1
    • Processor: Apple M1またはIntel Corei5
    • Memory: 4 GB RAM
    • Graphics: Apple Sillicon M1 または Radeon Pro 555
    • Storage: 1 GB available space
    Recommended:
    • OS: macOS Sonoma 14.2.1
    • Processor: Apple M1またはIntel Corei5
    • Memory: 4 GB RAM
    • Graphics: Apple Sillicon M1 または Radeon Pro 555
    • Storage: 1 GB available space
    Minimum:
    • OS: SteamOS
    • Processor: Zen 2 4c/8t、2.4-3.5GHz
    • Memory: 4 GB RAM
    • Graphics: 8 RDNA 2 CU、1.6GHz
    • Storage: 1 GB available space
    Recommended:
    • OS: SteamOS 3
    • Processor: Zen 2 4c/8t、2.4-3.5GHz
    • Memory: 4 GB RAM
    • Graphics: 8 RDNA 2 CU、1.6GHz
    • Storage: 1 GB available space
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