Complete the Mission 1
Complete the Mission 2
Complete the Mission 3
Complete the Mission 4
Complete the Mission 5
Complete 2-3
Complete 3-2
Complete 4-2
Complete 5-4
Destroy a Tank
Destroy a Helicopter
Destroy 3 towers
Destroy 5 cannons
Beat the game
Beat the game without using "Stage Select" mode
Beat the "Boss Rush" mode
Destroy 100 enemies in "Survival" mode
Destroy 250 enemies in "Survival" mode
Destroy 500 enemies in "Survival" mode
Beat the game in Hardcore Mode