FAQ: Ratchet & Clank 2: Going Commando for PS2

Planet Oozla
1. Prehistoric Rampage
Shoot down the two flying pterodactyles, one is fling near where you get the dynamo 
and another is near your ship. Recommended:Lancer/Heavy Lancer, Visibomb gun, Pulse 
Rifle/ Vaporizer

2. Smash and Grab
Destroy everything in the Megacorp store, leave nothing. Recommend:Box Breaker

Maktar Nebula
3. Wrench Ninga: Blade to Blade
In the battle arena destroy Chainblade with only your wrench. Recommend:upgraded 
wrenches that you find (Version 10000 or 12000)

4. Vandalize
Destroy everything on the level including the slot machines and the floating signs 
and etc... Recommend:Box Breaker, Gravity Bomb/Mini-Nuke

5. 2B or Not 2B Hit
Defeat the B2 Brawler without losing any nano tech or without being hit. 
Recommend:RYNO 2, Mini or Megaturret Glove, Kilinoid Bot

6. Clank needs a new pair of shoes
Get over 300 bolts from the slot machines or get three BARS. Recommend:Wrench

Planet Endako
7. Destroy ALL Breakables
Destroy every thing on the level. Recommend:Anything that destroys stuff

8. Operate Heavy Machinery
Use both the cranes to smash or zap 10 enemies. Recommend:Electrolyzer

Planet Barlow
9. Speed Demon
Get a time of 2:10 or less in the hover bike race. Recommend:3rd challenge, 
Electrolyzer

Planet Notak
10. Planet Buster
Destroy the big planet by first blasting the rings and the moons then blast the 
planet itself. Recommend:Lancer/Heavy Lancer

Planet Siberius
11. You can break a Snow Dan
Behind the garage that the robots smashed out of is a Snow Dan, DESTROY IT. 
Recommend:Wrench

Sorry I got to go, I'll update this later on