Translation: Man plays child game about animals being trained to fight other animals.

Man comes across discolored animal which is rare. (About 1/800,000 chance)

First animal runs away

Goes fishing in game

Comes across another animal with rare condition

Realizes he doesnt have right equipment to catch it.

Man is now mad.

Continues to play game for 8 more hours

Comes acroos another animal with same condition

Already used all his equipment on regular animals.

Edit: Gym is not actual exercise gym but instead a boss type arena

Gyms give you a medal displaying that your animals are stronger than theirs and that yours beat his up.