How much room do I need to play Ring Fit Adventure?

In order to perform every exercise, you should have enough space to:

• Stretch vertically while holding a Ring-Con. (Overhead Arm Twist)
  • Most stretches don't extend the Ring-Con upwards, so there's some leniency here.
• Extend your arms left and right while holding a Ring-Con. (Warrior II Pose)
• Lie on the ground with your feet extended. (Plank)
• Sit with your legs extended diagonally in front of you. (Fan Pose)
• Bend with hands extended forward and leg extended backwards. (Warrior III Pose)

You can try most of these exercises yourself before buying the game to see if you have enough room.