https://www.siliconera.com/rhythm-heavens-cooperative-multiplayer-will-test-your-relationship/
Rhythm Heaven's Cooperative Multiplayer Will Test Your Relationship - Siliconera
Jun 13, 2011 - HMV in Japan say that Rhythm Heaven has over 50 minigames and a 2-player mode that tests player compatibility.
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https://play.google.com/store/apps/details?id=com.rottzgames.multiplayer.jigsaw
Multiplayer Jigsaw Cooperative - Apps on Google Play
Play Jigsaw with your friends! Cooperative multiplayer Jigsaw puzzle game.
on googlemultiplayerjigsawcooperativeapps