This app was removed from the App Store.
Good bye Ten
iOS iPhone Games
You should touch move the Chaoz to the Nappa back.
Then your finger away from the screen.
When if you caught the Nappa then you should press bomb button before the Chaoz has stamina empty.
The Chaoz maximum battle level has 610.
In case of the Chaoz not defeat the nappa because the Chaoz has low battle level.