thow a hunger seed on your opponent and it will not move from its place + its attacks become much weaker and it it is eaten by leader of team his belle fills slightly and max. Belle six decrease by 5.
you get them as reward's. the more resucue's you do the better and more joy seed's you get and also if you do a good day in the sentry duty you could get one
To get surf in red rescue team you go to solar cave and on floor 20 it will be in the middle of a room. (note: you do not need a key but it is surrounded by water so have a Pokemon that can fly over...