you unlock that when you have unlocked every attachment and every camo for every gun in mw2
There is no such thing...
Occasionly, when there is a party, there may be free items. Look for these. Also, if you buy a CP toy, you can unloc clothes online. When Rockhopper comes, the free item may be an item of clothing. Good Luck with your clothes searching! -2468hsmfan (Club Penguin) xxxHSMgalxxx (YouTube)
Actually, there are 9. After you beat the eighth world, Peach tells you about a secret world. The world's theme is a star world. It's hard to get the courses because you need all the star coin in one world to unlock that course. (for eg. to unloc World 9-1, you have to have all the star coins in World 1, and so on and so on...) GOOD LUCK!
There r no cheat code but here r some thing u can do: Infinite Grenades Collect 80 gun icons. Infinite Pistol ammo Collect 60 gun icons. Stamina upgrades: Collect ten stamina icons to upgrade your total stamina. This can be repeated. Stamina upgrade You get a stamina (adrenalin) upgrade every 10 stamina icons you collect. Racing cars appear: Complete the Steal The Wheels mission Mission select: Complete all game missions to replay any mission of your choice. Inifinite Swan Off Shotgun ammo Collect 70 gun icons. DEA and military vans appear: Complete the mission Make Elvez Sing mission to make locked DEA and military vans appear. After the game is completed some of them will become unlocked. Dual rifles upgrade: Collect twenty gun icons. Unloc Ram: Complete The Good Son mission. Health upgrades: Collect ten health icons to upgrade your total health. This can be repeated. Dual pistols upgrade: Collect ten weapon icons. Inifinite ammo for grenade launcher Collect 90 gun icons. Unlock Ram's brother: Complete The Father mission. Infinite rockets Collect all 100 gun icons. Bike in the Bull Ring: Complete the Kill The Bull mission.