Skill Points:

Barlow Skill Points
"Speed demon" - Beat 1:45 in the hoverbike race.

Boldan Skill Points
"No shocking developments" - Ride the grind rail without getting hit.
"Safety deposit" - Rescue all tourists at the bank.

Damosel Skill Points
"Midtown madness" - Go grinding without getting hit.

Dobbo Skill Points
"Dukes up" - Kill the mech with only melee attacks.
"Old skool" - Kill all enemies with only the weapons from Ratchet and Clank 1.

Endako Skill Points
"Nothing to see here" - Destroy all Megacorp rockets during the tour.
"Destroy all breakables" - Bust up the Circular City.
"Operate heavy machinery" - Destroy 10 robots with the crane.

Grelbin Skill Points
"Be a moon child" - Mine all moonstones.

Joba Skill Points
"That's impossible!" - Beat the impossible challenge.
"How fast was that?" - Beat 2:05 in the hoverbike race.
"Wrench Ninja II: Massacre" - Kill all enemies with only the wrench.
"Bye bye birdies" - Kill 12 birds.

Maktar Nebula Skill Points
"Wrench Ninja: Blade to Blade" - Defeat Chainblade with only the wrench.
"Vandalize" - Bust up the Maktar Resort.
"2B or not 2B hit" - Kill B2 Brawler without getting hit.
"Clank needs a new pair of shoes" - Win 300 bolts from a slot machine.

Noob Skill Points
"Robo rampage" - Turn Lunar City into a parking lot.

Notak Skill Points
"Planet buster" - Destroy the large floating globe.

Oozla Skill Points
"Prehistoric rampage" - Shoot 4 pterodactyls.
"Smash and grab" - Bust up the Megacorp store.

Siberius Skill Points
"You can break a Snow Dan" - Kill the Snow Dan.

Snivelak Skill Points
"Moving violation" - Destroy 14 ships.

Tabora Skill Points
"Heal your chi" - Get all crystals.

Todano Skill Points
"You're my hero" - Rescue all tourists.
"Try to sleep" - Turn 16 squirrels into sheep.