Steps counted in the Pikmin Bloom app are linked to the Apple Health app. Pikmin Bloom may not always show Apple Health’s most up-to-date step count. Players can expect a delay of up to several hours for the Pikmin Bloom app to sync with Apple Health and accurately track your activity. Restarting the game may help expedite this process.
If your steps aren’t being counted in Health, visit this Apple Support article for further assistance.

If your steps are counted in Health but not reflected in Pikmin Bloom, please check the following settings:

Health App Settings
  1. Tap Settings
  2. Tap Health
  3. Tap Data Access & Devices
  4. Tap Pikmin Bloom
  5. Make sure the Steps option is enabled

Location Services Settings
  1. Tap Settings
  2. Tap Privacy
  3. Tap Location Services
  4. Tap Pikmin Bloom
  5. Tap Allow Always

Battery Settings
Sensors required for step tracking may be disabled in Low Power modes. Visit the Apple Support site and learn how to turn Low Power Mode on and off on your iOS device.

If your steps still aren’t counted with these settings, restarting your device may help solve the issue.