Chord structures and most melodies retained. Additional melodic material at 1:26 to 2:18. And some minor changes here and there - some instruments altered too. I THINK the overall theme is retained though :)
This is an eccentric remix of "Zero Stage 1" (AKA "Zero Virus Stage" from Megaman X5) done for MnP 79. I decided that emphasising the mystery element was the best choice. The original melody is way too repetitious so this is the best I could do with it while maintaining the lead.