Cleared Stage 1

Found the secret Warp Zone in Stage 2

Obtain at least 3 extra lives in Warp Zone 2

Cleared Stage 2

Cleared Stage 3

Found the secret Warp Zone in Stage 4

Obtain at least 2 extra lives in Warp Zone 4

Cleared Stage 4

Cleared Stage 5

Cleared Stage 1 on Hard Difficulty without losing lives (Loop 1)

Cleared Stage 2 on Hard Difficulty without losing lives (Loop 1)

Cleared Stage 3 on Hard Difficulty without losing lives (Loop 1)

Cleared Stage 4 on Hard Difficulty without losing lives (Loop 1)

Cleared Stage 5 on Hard Difficulty without losing lives (Loop 1)

Obtained max speed for the Proteus 911

Obtained max Missile upgrades

Obtained the Double Gun for the Proteus 911

Obtained the Laser for the Proteus 911

Obtained the Shield for the Proteus 911

Obtained all Option powerups for the Proteus 911

Obtained all powerups and have the Laser equipped.

Obtained a score of at least 100,000

Collected 50 Capsules consecutively without losing lives

Picked up a certain item to destroy every enemy on the screen

Completed the game (Loop 1) without obtaining any Speed powerups. (No Level Select)

Completed the second loop on Hard Difficulty (Starting from Stage 5 is allowed. Changing REST (Lives) is NOT allowed).