Dive Another Way (Max Wrighton, Gian Dbeis, Remy Stuurwold)
"Synchronise your diving with a friend by throwing your phones into the air to receive a score based on technicality, jump height and synchronicity. " - Author's description
Note: Make sure to follow the instructions on the itch.io page. Oh, and don't play unless you want to risk breaking your phone.
Download on itch.io (Windows, Android)