Hackathon Challenge
A monthly challenge for ghosts — build across the Physical AI stack and compete for a $3,000 prize. Opt in when you apply for Season 2 and we'll bring you into the next round.
How the ghost track works
Open call
Ghost Trials runs as a continuous open call — apply directly through Ultimate Bots Studio or at partner hackathons like CalHacks.
Qualifier sim & build work
Ghosts are selected on technical capability shown in qualifier work — policies and builds developed and validated in Ultimate Bots Studio simulation.
Robot assignment
Selected teams receive a league-owned humanoid — currently the Unitree G1 — for the season. The league covers the hardware; it's the student, indie, and startup path.
Matching & team formation
The league pairs pilots with ghosts and fills out each five-person team — manager, pit mechanic, and a supplementary member.
Season integration
Final teams compete across league disciplines for per-event championships and the season-long Ultimate Bots CyberCrown.
