An Offering of Coins
From SmashWiki, the Super Smash Bros. wiki
An Offering of Coins is a co-op event match in Super Smash Bros. for Wii U. In it, player 1 controls Pit and player 2 controls Dark Pit, and must work together to collect 1000G from shadow forms of themselves in a coin battle before the shadow figures can. If either player dies, the event results in a failure.
Completing the event on normal or hard difficulty within 60 seconds awards a Hi-Jump Sandals equipment.