Ben 10 protect of the earth ( Wii Gameplay) part 1

Based on the cartoon network series called Ben 10, during the viaction with grandpa max and cousin gwen a mysterious small flying bug took something from the omnitrix and ben ben unable to transform into the aliens because something happen to his watch he needs to finds out what's wrong with his omnitrix so ben gwen and grandpa max need to continue to find more of the omnitrix crystals so they can fight vilgax on their way.