Beat the Default High Score (20,000)
Enable the Sound Mode
Enter the Lives Cheat Code
Complete Area 1
Complete Area 2
Complete Area 3
Complete Area 4
Complete Area 5
Complete Area 6
Complete Area 7
Complete Area 8 and win the game
Beat Stage 1 without dying (1P Solo)
Beat Area 2 without dying (1P Solo)
Beat Area 3 without dying (1P Solo)
Beat Area 4 without dying (1P Solo)
Beat Area 5 without dying (1P Solo)
Beat Area 6 without dying (1P Solo)
Beat Area 7 without dying (1P Solo)
Beat Area 8 without dying (1P Solo)
Beat Any Boss with Laser Weapon (1P Solo)
Cross the Area 3 Swamp without shooting or dying (1P Solo)
Move one side to another on the top of Babalu Destructoid Mechanism (1P Solo)
Hold right throughout the entire earthquake section (1P Solo, Area 3)
Defeat the Area 2 Boss by killing only the green soldier (No Lives Cheat)
Area 3 Boss - Carefully remove the Core Protection (No Lives Cheat)
On Area 4 boss destroy all but the outside beam guns (No Lives Cheat)
Complete the Second Run (No Lives Cheat)
Complete the Game (No Lives Cheat Code)
Complete the Game with default weapon only (1P Solo, No Lives Cheat)
In Area 1, without destroying them, pass the first two gun turrets and do not kill any green enemies
Finish Stage 2 without turning back
Reach boss on Area 4 without shooting down, up or diagonally (1P Solo)
Defeat last Boss at far range (1P Solo, No Lives Cheat, No Spread Weapon)
Defeat the Chopper Boss without jumping (1P Solo, No Lives Cheat)
Cross the corridor full of spikey balls without shooting or dying (1P Solo)
Climb the cliff on Area 5 while not falling bellow bottom third of the screen
Being on the cliff on Area 5 reach the boss without shooting or dying (1P Solo)
While fighting 5th boss remain prone for awhile without killing anything
Finish Area 6 never turning back (1P Solo)
Give critical damage to 6th boss not killing it's projectiles or the snake
Reach boss on Area 7 without jumping or shooting down, up or diagonally
Get through to the boss in Area 7 without killing any crawlers (1P Solo)
Reach the boss on Area 8 without killing any running aliens
Defeat the Area 7 Boss without jumping, dying or using power ups (1P Solo)