Where can i find solid seed in naruto ultimate ninja storm 2?

In Naruto: Ultimate Ninja Storm 2, you can find Solid Seeds by defeating certain enemies or bosses during missions, particularly in the later stages of the game. Additionally, you can sometimes obtain them from treasure chests scattered throughout the game's various locations. Keep an eye out for specific areas where tougher foes reside, as they have a higher chance of dropping Solid Seeds.