Sonic’s Edusoft is a rare unreleased prototype developed in 1991 by Tiertex Design Studios for the Sega Master System. Originally intended as an educational title for younger players, it was cancelled before publication. This leaked build allows fans to explore an alternate take on the franchise, featuring custom 8-bit animations and a top-down overworld inspired by the Green Hill Zone.
The goal is to guide Sonic across the map and collect emeralds to unlock gates blocking your path. You earn emeralds by completing a series of mini-games focused on basic arithmetic and spelling. Use the Arrow Keys to navigate the overworld and highlight answers in the puzzles, and press Z or X (functioning as the Master System’s 1 and 2 buttons) to confirm your selections.
Since this is an unfinished prototype, you may encounter incomplete features or missing collision in certain areas, so explore carefully. Focus on clearing all available puzzle nodes in a section to ensure you have enough emeralds before approaching a locked gate.
https://info.sonicretro.org/Sonic%27s_Edusoft
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