A Nico Nico Douga maker named Korori built a triangular machine for the anything-goes JCJC time-attack scene. The idea targets one of the course's hardest sections, the lane change, where roller contact can slow or destabilize a conventional rectangular chassis.
By making the body triangular, the design aims to reduce that contact near the crest. In the pursuit of speed, even the familiar shape—and effectively the usual four-wheel assumptions—of a Mini 4WD car are treated as optional.
Optimization gets wonderfully ruthless when “make the Mini 4WD faster” turns into “the rectangle is optional, and apparently four wheels are too.”
At Adventure World in Wakayama, a robotic penguin swims beside real penguins, moving its flippers to turn and dive.
The robot was built by the park operator’s Kokorobo team. The result is a zoo exhibit where a machine can briefly blend in with the animals people came to see.
A zoo exhibit quietly turning into a “spot the robot” puzzle is a wonderfully unexpected side effect of getting the engineering right.
Most automatic Rubik's Cube machines are built to solve the puzzle as efficiently as possible. This one was deliberately made to represent the experience of someone who cannot solve it. Created by Shintaro Tamefusa, who says he cannot solve a Rubik's Cube himself, the machine grabs the cube with four arms, performs apparent analysis on a PC and keeps turning the puzzle. Eventually it starts voicing doubts, suggests dubious shortcuts and finally gives up and drops the cube. Instead of automating competence, it automates being stuck.
The machine doesn't solve the puzzle; it mechanizes the feeling of not knowing what to do. Even the robot starts losing confidence.
To give in-game death more physical consequence, maker Hori built a system where dying in Super Mario Bros. triggers a basin to fall from above the player's head. The setup listens for Mario's death music, then activates a servo that releases the basin. During testing, microphone noise caused a false detection and dropped the basin even though Mario was still alive. A machine designed to increase immersion accidentally introduced its own real-world version of an unfair game event.
Trying to make game death feel more real also means a false positive becomes physically real. That's an aggressively immersive bug.
The 2026 Tokyo edition of Hebocon, a robot contest specifically for people with low technical skills, was held on August 29. Homemade robots battle on a small sumo-style ring, but using technology that is too sophisticated can earn a High-Tech Penalty. Sankei reported on the event on September 6, highlighting the awkward machines, unusual performances and enthusiastic crowd.
It's a robot contest where building the robot too well can cost you points. Maintaining low-tech purity may be a skill of its own.
Palmimo DevKit is a tabletop AI robot that lets LLM tool calls map directly to physical actions such as walking, waving and turning its head. With six legs plus a neck, it has 21 degrees of freedom, along with a Raspberry Pi 5 and a round display face.
The warm wooden exterior is designed to feel approachable, and motions can be called from Python. Technically it is a physical-AI development kit; visually it can look like a small piece of furniture that decided to move around.
Inside it's a serious AI robot, but in a room it still looks surprisingly furniture-adjacent. That's a charming mismatch.
Making a robot feel alive is not only about faces or voices; whole-body motion can matter too. MOFU (MOrphing Fluffy Unit) explores that idea with a fluffy spherical body that expands and contracts. Developed by researchers at the University of Electro-Communications, it uses a Jitterbug geometric structure and a single linear actuator to change its height from roughly 210 mm to 280 mm.
In user studies, adding whole-body expansion, contraction and rotation made the robot seem more animate than locomotion alone. Rather than relying on a face, MOFU uses the rhythm of its entire body to suggest life.
Before giving the robot a face, they basically said “let's make the whole body breathe.” The fluffiness makes that strangely convincing.
Optimization gets wonderfully ruthless when “make the Mini 4WD faster” turns into “the rectangle is optional, and apparently four wheels are too.”