The arrogant kid started with his Deino. When the Pokemon was sent out it released a loud cry, most likely to intimidate Ches. Ironically Ches just laughed. Kyle was thinking that Ches was so unpredictable at times. The battle has now started. Kyle was at a type disadvantage but had the upper hand in the fact that Ches was evolved, while the Deino had yet to evolve. He knew Ches couldn't use his ghost type moves effectively so he decided to use a different move.
"Ches, hit him with your Sludge Bomb!" Kyle shouted.
The Haunter opened his mouth and shot a vile projectile towards the Deino.