The Evolution Solution
Ash goes to Seafoam Island to help Professor Oak to discover the mystery of how Slowpoke evolves into Slowbro. There, Professor Westwood V is also trying to solve the mystery. Jessie captures Shellder, and tries to rush a Slowpoke's evolution, forcing Psyduck to stall the evolution.
Writing:
Stars:
- Satoshi Tajiri
- Junichi Masuda
- Ken Sugimori
Stars: