KingKongRobotics / jumper

# Jumper
**English** | 简体中文
**Jumper is a 22-DoF crab robot.** View hardware →
This repo is Jumper’s AI toolkit for appearance, motion, and scene creation. Open this repo in an AI coding assistant and try the prompts below.
> 🦀 **Get a free Jumper!** Find out how →
## One sentence to design an appearance
> Design a warm sand ranger appearance for Jumper with coordinated body and limb colors, then export a `.skin`.
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| **Warm sand ranger** | **Silver armor** | **Raphael Turtle** |
Browse all skins
## One sentence to train a motion
> Train a stable tripod gait for Jumper, replay and evaluate the result, then package it as an `.app`.
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|:-:|:-:|:-:|
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| **Walk** | **Posture** | **Gesture** |
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| **Dance** | **Jump** | **Grasp** |
## One sentence to create a scene
> Create a park pump-track scene for Jumper with rolling terrain, trees and benches, then export a `.map`.
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|:-:|:-:|:-:|
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| **Park pump track** | **Bedroom** | **Soccer** |
Browse all maps
## Where to find things
| Resource | Purpose |
|---|---|
| jumper-design | Appearance and scene creation; your assistant reads its instructions and uses its tools as needed. |
| Training tutorial | Motion training, replay and policy export in this repository. |
| Colab training | GPU training in a notebook, checkpoint backup, resume, ONNX export and MP4 simulation replay. |
| Motion bundles | Package trained motions and their controller as an `.app`; see the build guide for prerequisites. |
| Project guide | Setup, current capabilities and further documentation. |
Training builds on mjlab,
rsl_rl, MuJoCo
and MuJoCo Warp.
Example appearance and scene images come from jumper-design; image sources
and third-party notices record attribution.
## License
Copyright 2026 KingKong Robotics.
Maintainer-owned project materials are licensed under Apache-2.0. See LICENSE,
NOTICE, and licensing details.
Third-party materials remain under their respective terms, and generated outputs do not
automatically inherit this repository's license.