It's in the Stadium (Soccer/hockey field)
You cant find Protobot on a field op.
you cant
Do the field-op.
Its is at the ski mountain
Go to the town and click on the S in the word disco. Then complete the field op.
For Field Op No. 33, take a portal box at the beach to the box dimension.
In The Attic on the left
no you cant
Hidden Lake.
it is in the recycling center at the mine.
To get the EPF Earpiece on club penguin you have to do complete one field op mission then you can get it.