Shiranui donned his goggles and the trio entered the desert, getting buffeted by the sandstorm soon afterwards.  He soon spotted a Hippopotas and sent Hoshi out to battle it.
"[i]Hippopotas, the Hippo Pokémon.  It enshrouds itself with sand to protect itself from germs.  It does not enjoy getting wet.[/i]"
"Hoshi, Bubble Beam!"  The Staryu blasted a big spray of bubbles at Hippopotas and nailed it for a super effective hit.  Hippopotas let off a big yawn and Hoshi soon started to feel drowsy before taking damage from the sandstorm.  "Great Ball, go!"  Shiranui threw a Great Ball and Hippopotas was drawn in.  The ball shook three times before letting off a ping barely heard in the sandstorm.  He had now caught a Hippopotas, naming it Sunakaba.