If you collect all 14 Emeralds, Sonic can transform into Hyper Sonic , a flashing, invincible version of the character that is even faster than Super Sonic. Legacy and Modern Access

While Sega has delisted the SEGA Mega Drive & Genesis Classics from Steam, users who previously purchased it can still find their legitimate .bin file:

: Ensure the file is named exactly Sonic_Knuckles_wSonic3.bin (avoid double extensions like .bin.zip ).