Coin Toss (コイントス,Coin Tosu?) is the 1st Endless Game in Rhythm Heaven and the 9th minigame and endless game in Rhythm Heaven Megamix being the first endless game you play as. In this game, the player tosser, which turns out to be woman, tosses a coin that stays in the air for a certain amount of time and must catch it every time it falls. Only 2 Medals are required to unlock it. The background music is drums in Rhythm Heaven, but in Megamix is laugh-fest. This minigame appears in Gate 1 in Rhythm Heaven Megamix.
The game keeps score by counting every time the player successfully catches the coin. The player must make judgement on when the coin will land relying on the rhythm being played in the background; they must count to seven each time. The background beat will cut off shorter after each catch but still relying on the timing. After the first few rounds of catching, the music will play fully but slower the next time and then repeat that cycle. In Rhythm Heaven, the player's score is reset every time a catch is failed.
The player has the option to select which difficulty they want in the Megamix version of the game: Easy (Saffron), normal (Saltwater) or Hard (Paprika). Saffron's Challenge: Catch the Coin 10 Times, the player has 4 Lives and the song will play the entire time. Saltwater's Challenge: Catch the Coin 15 Times, the player has 3 Lives and the song may stop for a bit. Paprika's Challenge: Catch the Coin 15 Times, the player has 2 Lives and the song may stop for a bit or stop entirely meaning the player has to remember the song.