Blitz: Psychic Shock And Psychic Storm

Unleashed: Psychic Shock

1. His Whole Body Turns A Glowing Blue
2. His Eyes Glow Yellow

Power levels are raised a bunch, increasing all the stats by 25%, (except defence which is raised by 50%), in gameplay, and MUCH more in cutscenes. It takes a lot of Psy though, so he can't maintain it for long. 

Legendary: Psychic Strom

1. His Whole Body Turns A Reflective Gold
2. His Eyes Glow Blue

His power raises tremendously, multiplying all the stats by 2 in gameplay, and MUCH more in cutscenes. It takes a lot of Psy though, so he can't maintain it for long.