Ryo (リョウ Ryō) or Ryou is a recurrent character in the Taisen Puzzle-Dama series.
Ryo is a wandering fighter who travels all over the country in search of strong opponents. He settled down in a tent at Marutama Park and earns his income by acting as a guard of the town while practicing his abilities. His specialty is the "Explosive Chain Fist".
In the second game he moves on to the Ikeda Shokai Garage close to the park. The Crazy Cross Class is A-.
- During his 5+ chain and his winpose in the second game he transforms into Kotetsu from Monster Maulers.