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Watch trailer on Steam ↗Hypotheses on the Symmetry between Vision and Hands
Finger tip · Published by KAMIICHI DIGITAL · Official site ↗
Very Positive — 97% positive (62 reviews) · 29 achievements
Last updated 28 Sept 2026
The hypothesis regarding vision-hands symmetry is a validation experiment where separate characters are controlled with the left and right hands. It measures the connectivity and enhancement of cognitive character recognition through both hands and vision.
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Action, Adventure, Indie, Casual · 2025 · More under £5 games
Embark on a unique journey where your hands control distinct characters as you explore the hypothesis of vision-hands symmetry. Experience an innovative blend of action and adventure in this casual, indie game from Finger tip.
About this game
Experiment Participation Information
Thank you for your interest in our hypotheses regarding the symmetry between vision and hands.
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.
* Features Included in the Game Used in the Experiment
Top-down view action
Action that can be frustrating
Brain training
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.

We look forward to your participation in the experiment.
Regarding Video Streaming
You are free to post or live-stream videos related to this experiment.
To encourage the recruitment of new participants, please include Steam Store page link in your video description.
System Requirements
Will my PC run this? →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
Supported Languages
Latest news
Patch NotesOfficial
ver.1.2.5 has been released.
Hypotheses on the Symmetry between Vision and Hands ver.1.2.5 has been released.The game engine has been updated.Thank you for your continued support of Hypotheses on the Symmetry between Vision and Hands.Read full article on Community Announcements (温野菜)AnnouncementsOfficial
Version 1.2.4 has been released.
Thank you for playing Hypotheses on the Symmetry between Vision and Hands.Version 1.2.4 has been released.Update contents:Game engine upgradeCode optimizationI appreciate your continued support of Hypotheses on the Symmetry between Vision and Hands.Read full article on Community Announcements (温野菜)AnnouncementsOfficial
Version 1.2.3 is now live!
Version 1.2.3 is now live! I've reduced the issue where unintended input noise could occur when releasing the stick. Now, small stick movements will be ignored to help prevent accidental inputs. These changes are aimed at reducing unintentional control errors. Tiny input noise caused by stick rebound has been removed. Welcome your feedback on how the controls feel—good or bad. Any other feedback is also greatly appreciated. Please continue to enjoy the brain-breaking experience!Read full article on Community Announcements (温野菜)Patch NotesOfficial
I fixed an issue where the menu could not be displayed on Windows.
I fixed an issue where the menu could not be displayed on Windows. I apologize for the inconvenience. I'll continue to update the game to ensure an enjoyable experience. Thank you for your support.Read full article on Community Announcements (温野菜)Patch NotesOfficial
Version 1.2.2 Released
Version 1.2.2 Released You can now flip pages using either the A or B button Removed stick input from tutorial page navigation Added credits rollRead full article on Community Announcements (温野菜)






