Uploaded November 2025 | Updated September 2026, 2 weeks ago

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THANKS FOR WATCHING!

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"Sonic J is a Sonic fan game that aims to bring a new Classic Sonic experience.

This is the Online Physics Demo, an updated version of the game's "New Physics Demo" (2021), which introduces online features such as online sessions, time attack leaderboards with watchable replays, 17 unlockable trophies, user statistics and more, all powered by the GameJolt API."

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Sonic J: Online Physics Demo by jtn00b:hedgehogtechnicalinstitute.com/events/cgs2025/sonicj

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