: Includes advanced moves like the bounce, spin-charge, drop-charge, and jump dash. Advanced Physics

While there isn't a single "official" portable installer, you can find the engine files and various fan-made demos that run as standalone applications on the following platforms: Available Downloads Bumper Engine V2 (2023 Demo) : The latest iteration of the engine was showcased at by developer . You can find it on Sonic Fan Games HQ Bumper Engine Reborn (Mobile) : An unofficial Android port is available through Sonic Legacy

At least Unity 2017.3.0 is required for those looking to build games using the source code.

— Could it be:

: A popular fan game built using this engine, available for download on Key Features

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Sonic Bumper Engine Download Link Portable ⚡ Full

: Includes advanced moves like the bounce, spin-charge, drop-charge, and jump dash. Advanced Physics

While there isn't a single "official" portable installer, you can find the engine files and various fan-made demos that run as standalone applications on the following platforms: Available Downloads Bumper Engine V2 (2023 Demo) : The latest iteration of the engine was showcased at by developer . You can find it on Sonic Fan Games HQ Bumper Engine Reborn (Mobile) : An unofficial Android port is available through Sonic Legacy sonic bumper engine download portable

At least Unity 2017.3.0 is required for those looking to build games using the source code. : Includes advanced moves like the bounce, spin-charge,

— Could it be:

: A popular fan game built using this engine, available for download on Key Features available for download on Key Features