In Sonic 3 & Knuckles (Sonic 3 and Sonic & Knuckles together), you could get the 7 Chaos Emeralds just like in another Sonic game. But in Mushroom Hill Zone, you could teleport to Hidden Palace Zone and upgrade the Chaos Emeralds to Super Emeralds. This means that you could transform into your character's Hyper form = t3h pwn4g3!
Hyper Sonic performed a double jump, killing any enemies on screen!
The extracting of a person's nasal mucus (UK term bogeys - referred as 'boogers' in the US) from one's nasal passages. The term 'mining for emeralds' came about due to the nasal materials' similarity in colour to the emerald jewel.
1. "Oops, nearly got caught mining for emeralds there!"
2. "Urgh, have you seen the bog - someone's been mining for emeralds all across the wall!"