To download or access opera vpn on Android,you have a few options:

1. Check the Google Play Store: Search for "Opera VPN for Android" and see if it's available. However, it's not available on the official Google Play Store.

2. Search for Browser Extensions: Use Google Chrome and search for browser extensions related to opera vpn or VPNs. Some extensions may offer similar functionality.

3. Use Browser Settings: In Google Chrome, go to Settings > General > Extensions and search for opera vpn.

4. Third-Party Apps: Search for "Opera VPN for Android" on the Play Store for third-party apps that may offer similar functionality.

If you're unable to find the app, you can also try accessing opera vpn through browser extensions or using browser features. Let me know if you need further assistance!