Challenge	How to unlock
Blue Bomber	Beat the game in less than one hour.
Destroyer	Defeat 1,000 enemies.
Hard Rock	Reach the boss room of a stage without being damaged on the way.
Headbanging	Defeat all Robot Masters as a helmetless MegaMan.
Invincible	Beat the game without losing any lives.
Mr. Perfect	Beat the game without taking damage even one time.
No Coffee Break	Beat the game without the usage of any kind of Tank.
Superhero	Beat the game on Hard difficulty.
Tenacious	Beat the game without being forced to continue from a Game Over.
Trusty Sidearm	Defeat all Robot Masters without the use of special weapons.
Whomp Wily!	Beat the game one time.
World Warrior	Defeat one of all kinds of enemies.

Note: This refers to the Challenges on Page 2: the 88 on Page 1 of the menu are those you can accept from the menu and go immediately into a specialized situation for the challenge. These must also be completed during the main story mode.