By completing certain objectives in the game, you'll unlock special awards and titles.

Achievement	How to unlock
Alien's Lair Medal	Finish Stage 8 of Arcade Mode without losing a single life.
Ammunition Supply	Buy an item for the first time at the shop.
Base 1 Medal	Finish Stage 2 of Arcade Mode without losing a single life.
Base 2 Medal	Finish Stage 4 of Arcade Mode without losing a single life.
Energy Zone Medal	Finish Stage 6 of Arcade Mode without losing a single life.
Female Intuition	Play as the female Contra soldier for the first time.
First Appearance	Reach Level 2.
Freestyle	Play Mission Mode for the first time.
Goodbye, Rocks!	Destroy 10 falling rocks in Stage 3 of Arcade Mode.
Guardian Angel	Revive for the first time.
Hangar Medal	Finish Stage 7 of Arcade Mode without losing a single life.
Hero	Destroy 4 alien incubators in Stage 8 of Arcade Mode.
High Flyer	Jump 5,000 times.
IED Bombs	Destroy all armored cars in Stage 5 of Arcade Mode.
Jungle Medal	Finish Stage 1 of Arcade Mode without losing a single life.
King of the Jungle	Kill less than 5 enemies in Stage 1 of Arcade Mode.
Master of Guns (F)	Kill 2,500 enemies with F bullets.
Master of Guns (H)	Kill 2,500 enemies with H bullets.
Master of Guns (L)	Kill 2,500 enemies with L bullets.
Master of Guns (M)	Kill 2,500 enemies with M bullets.
Master of Guns (S)	Kill 2,500 enemies with S bullets.
Master of Guns (SF)	Kill 2,500 enemies with SF bullets.
Master of Guns (SH)	Kill 2,500 enemies with SH bullets.
Master of Guns (SL)	Kill 2,500 enemies with SL bullets.
Master of Guns (SM)	Kill 2,500 enemies with SM bullets.
Master of Guns (SS)	Kill 2,500 enemies with SS bullets.
More Guns!	Use all kinds of bullets.
Nuke This	Use the V Bomb for the first time.
Red Enemy Gang	Kill all red enemies in Stage 4 of Arcade Mode.
Savior	Reach Level 20.
Serial Killer	Kill 5,000 enemies.
Sharpshooter	Kill all snipers and gunners in Stage 6 of Arcade Mode.
Snow Field Medal	Finish Stage 5 of Arcade Mode without losing a single life.
The Ghost	Finish Arcade Mode with less than 300 kills.
Total Destruction	Destroy all traps in Stage 7 of Arcade Mode.
War Hero	Finish Arcade Mode.
Waterfall Medal	Finish Stage 3 of Arcade Mode without losing a single life.
What Gun Turrets?	Destroy all gun turrets in Stage 2 of Arcade Mode.
Zombie	Die 1,000 times.