Lau:// I feel like I should step in and explain... Hotaru was born in the early days before Unova was localised, therefore he was born a Bachuru. As he grew up, Unova was localised and the name Joltik came about. Hotaru was still young, and with people calling him Joltik, he simply picked up the name, picking up the speech patterns with it. He doesn't remember ever being Bachuru in his normal state, but this baby magic seems to have brought something back. The "Chuu" isn't Pikachu, it's BaCHUru. He'll be back to his normal tik self when the magic lets up~