Progress Tracking: Daily body test, graphs, fit age calculation.
Mii Integration: Personal avatar reflects fitness changes.
Why It Succeeded
Accessibility: Low-impact, home-based, no gym intimidation.
Gamification: Unlockables, high scores, "fit credits" motivated consistency.
Family Appeal: Multiplayer profiles, age-appropriate activities.
Timing: Coincided with casual gaming boom and health awareness trends.
Legacy
Wii Fit sold 22+ million units, spawning Wii Fit Plus (2009) and influencing Ring Fit Adventure (Switch). It proved gaming could meaningfully intersect with wellness.