Rush'n Attack cheats and cheat codes for Xbox 360

Alternate sound effects:
When you are at the main menu, press Up, Up, Down, Down, Left, Right, Left, 
Right, B, A. If the code is accepted, you will hear a sound of a cat.

Achievements:
Complete the following achievements to award the indicated amount of 
Xbox Live Gamerscore points. 

Good Start (10 gamerscore points): 
Finish the Missile Base. 

Not Bad (10 gamerscore points): 
Reach at least 50,000 score.

Fair Fight (10 gamerscore points): 
Reach the mortar without beating any unarmed soldier in Missile Base. 

Reflexes (15 gamerscore points): 
Finish the Missile Base without losing a life. 

Bravery (15 gamerscore points): 
Complete the Harbor Level but use only your knife. 

Stamina (15 gamerscore points): 
Finish the Bridge Level. 

Stealth (15 gamerscore points): 
Finish Missile Base, defeating less than 18 enemies. 

Victory (20 gamerscore points): 
Defeat the Enemy Prison Camp. 

Knife Master (20 gamerscore points): 
Finish all levels without powerups and using only your knife.

Teamwork (20 gamerscore points): 
Score at least 200,000 points while playing an Xbox Live co-op match. 

True Marine (20 gamerscore points): 
Save the POWs in less than 10 minutes. 

Mad Marine (30 gamerscore points): 
Save the POWs at least two times.