Hero Bolts are the equivalent of the Gold Bolts from previous Ratchet and Clank games. There are a total of 42 in the game, with each character having his own, in the same location as everyone else's. As you collect Hero Bolts, you unlock skins for each character (located in the Cheats section).
#1 - This is located under the glass in the second incinerator room. Vac-U all the trash balls in the room into the incinerator to open the glass tubes.
#2 - This is right by the exit after you complete the Vac-U revive tutorial. This is right before the elevator that brings you along to where the computer turns against you.
Outside Receiving Section
#3 - This is located on a piece of unstable ground right after the first Croid lab (the one where upon completion, you unlock a piece of the RYNO VI).
#4 - When you first encounter the Pyromite, you will find the bolt on a single piece of unstable ground to the left.
#5 - You will land on some lava rocks that sink when damaged, surrounded by explosive crates, which forks into two paths. The bolt is under some glass on the right path, which is guarded by a Pyromite generator.
#6 - You will land on a big rock platform after being launched from a launch pad, with a zipline leading you to the next section. The bolt is on that platform.
#7 -This one is in the village, on a metal platform after crossing the first wooden bridge.
#8 - This is right after finishing all of the enemies in the arena; it's on a rock to the right after the arena.
#9 - This is located after the second Croid lab. When you get to the hookshot catapult, use it and it will be on the platform you land on.