Uploaded January 2023 | Updated September 2026, 53 minutes ago

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"Bust the video game speed barrier wide open with Sonic The
Hedgehog. Blaze by in a blur using the Super Sonic Spin Attack.
Plummet down tunnels and spin through space. Bounce around 'till
your dizzy in a pinball machine. You've never seen anything like it!"

00:00:00 - Green Hill
00:05:40 - Marble
00:10:35 - Spring Yard
00:18:20 - Labyrinth
00:32:05 - Scrap Brain
00:39:02 - Star Light

This longplay of Sonic for the Master System has been modified with a Genesis gfx and music mod by Slogra. The mod has been made freely available at SMSpower (you need to supply an original rom image) smspower.org/Hacks/SonicTheHedgehog-SMS-Genesis-Mod

I thought this was an interesting mod to make a video for which aims to show just how there was untapped graphic potential in the original game. The game plays the same as the original but seems to suffer some slowdown especially in the labyrinth levels. I get a little disorientated in what was previously the Jungle levels as the gfx are so jarringly different.