If Pikmin Bloom is available to download in your country/region, you can find Pikmin Bloom in the App Store/Google Play Store on your device. Please access the following links to confirm.

App Store (iOS)
https://play.google.com/store/apps/details?id=com.nianticlabs.pikmin

Please note that the App Store/Google Play Store must be set to your country/region, when checking for the availability.