From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Gray_Coin&oldid=2531543"
Gray Coins are coins that appear in Super Mario World. Pressing a Gray P Switch turns all enemies into Gray Coins for a limited time. However, Gray Coins work differently from standard coins in this game; if enough are collected, they give extra lives, similar to jumping on numerous enemies in succession. In certain levels, a trick involving hordes of enemies and a Gray P Switch can be executed to earn dozens of extra lives. This goes in order with collecting Gray Coins:
Names In other languages