Participants in the intervention group will engage in the "HAPPY GO GO" somatosensory exergame program. The intervention consists of structured game-based physical activity sessions, conducted once per week for a total duration of 12 weeks. Each session includes interactive, movement-based tasks designed to promote physical health, and mental well-being among community-dwelling older adults.

Participants in the control group will not receive the game-based intervention. They will continue with their usual daily activities without structured exercise sessions. Health outcomes will be assessed at baseline and post-intervention for comparison with the experimental group.

Participants in the intervention group will engage in the "HAPPY GO GO" somatosensory exergame program. The intervention consists of structured game-based physical activity sessions, conducted once per week for a total duration of 12 weeks. Each session includes interactive, movement-based tasks designed to promote physical health, and mental well-being among community-dwelling older adults.

Frailty will be assessed using the Study of Osteoporotic Fractures (SOF) Index, which consists of three items commonly used in Taiwan's Ministry of Health and Welfare community frailty screening program. The SOF Index has a score range from 0 to 3, where a higher score indicates greater frailty (worse outcome).

Score = 0: Robust Score = 1: Pre-frail Score = 2-3: Frail

Flexibility of the lower limbs will be assessed using the chair sit-and-reach test. Higher scores (in centimeters) indicate better flexibility.

Flexibility of the upper limbs will be assessed using the back scratch test. Higher scores (in centimeters) indicate better flexibility.

Agility and dynamic balance will be assessed using the 2.44-meter timed up-and-go test. Shorter times indicate better performance.

Muscle strength will be assessed using the 30-second chair stand test (lower limb strength) and the 30-second biceps curl test (upper limb strength, 8 lbs men / 5 lbs women). Higher repetitions indicate better strength.

Cardiopulmonary endurance will be measured using the 2-minute step test. Higher step counts indicate better endurance.

BMI will be calculated from measured height and weight using a standardized anthropometric assessment.