Looks to me he's running a scam with the Pyukumuku to litter themselves around on purpose for him to "clean up", and Guzuma is pissed because Team Skull is cleaning up for real.
Thanks!!Oi kid!!No problem!PyukumukuDon't use pokemon for profit!!Dash!Thank you! This is your pay of 20K! I'm counting on you tomorrow too!All of them have returned to the sea.Yo~ Pyukumuku, here's today's pay. 1000 yen each.Every day the beach is filled with Pyukumuku! What do you think about removing them as a part time job?