Green Ring

Green Rings are objects that appear in New Super Mario Bros. U. The player should jump through it to activate Green Coins that rotate and come in five groups of three. They are similar to Red Rings, that generate Red Coins. When all the green coins in a level have been collected, the player receives a Power-Up or a 1-Up Mushroom.

New Super Mario Bros. U
The green rings make their debut in New Super Mario Bros. U with green coins are placed in very dangerous and are activated when Mario passes over them when this happens 3 Green Coins appear when they seized another 3 appear and so on until you have gotten 5 groups after being awarded the player a Power-Up or 1up Mushroom