- Challenge options
Successfully complete the indicated task to unlock the corresponding type of challenge in Challenge mode:

Hard Boss challenges	Reach the Boss on the Hard difficulty.
Easy Mini Boss challenges	Reach the Mini Boss on the Easy or Normal difficulty.
Normal Mini Boss challenges	Reach the Mini Boss on the Normal difficulty.
Normal Boss challenges	Reach the Boss on the Normal difficulty.
Easy Boss challenges	Reach the Boss on the Easy difficulty.
Hard Mini Boss challenges	Reach the Mini Boss on the Hard difficulty.

- Hard mode
Successfully complete the game on the Normal difficulty to unlock the Hard difficulty.

- Challenges
Successfully complete the indicated task in Story mode to unlock the corresponding challenge in Challenge mode:

Crab Puncher H	Reach Crab Puncher on the Hard difficulty.
Wily Machine H	Reach Wily Machine on the Hard difficulty.
Octobulb H	Reach Octobulb (Sheep Man stage) on the Hard difficulty.
Suzak and Fenix H	Reach Suzak and Fenix (Solar Man Stage) on the Hard difficulty.
Nitro E	Reach Nitro Man on the Easy difficulty.
Pump N	Reach Pump Man on the Normal difficulty.
Wily Capsule N	Reach Wily Capsule on the Normal difficulty.
Block Devil N	Reach Block Devil on the Normal difficulty.
Sheep H	Reach Sheep Man on the Hard difficulty.
Sheep E	Reach Sheep Man on the Easy difficulty.
Pump H	Reach Pump Man on the Hard difficulty.
Crab Puncher E	Reach Crab Puncher on the Easy difficulty.
Strike N	Reach Strike Man on the Normal difficulty.
Wily Capsule E	Reach Wily Capsule on the Easy difficulty.
Sheep N	Reach Sheep Man on the Normal difficulty.
Wily Machine E	Reach Wily Machine on the Easy difficulty.
Chill E	Reach Chill Man on the Easy difficulty.
Chill N	Reach Chill Man on the Normal difficulty.
Solar N	Reach Solar Man on the Normal difficulty.
TriCastle H	Reach TriCastle (Blade Man Stage) on the Hard difficulty.
Wily Capsule H	Reach Wily Capsule on the Hard difficulty.
Chill H	Reach Chill Man on the Hard difficulty.
Strike E	Reach Strike Man on the Easy difficulty.
Commando E	Reach Commando Man on the Easy difficulty.
Crab Puncher N	Reach Crab Puncher on the Normal difficulty.
Pump E	Reach Pump Man on the Easy difficulty.
Blade E	Reach Blade Man on the Easy difficulty.
Block Devil E	Reach Block Devil on the Easy difficulty.
W Archive H	Reach the first Wily Archive on the Hard difficulty.
W Archive N	Reach the first Wily Archive on the Normal difficulty.
Nitro N	Reach Nitro Man on the Normal difficulty.
Blade H	Reach Blade Man on the Hard difficulty.
Nitro H	Reach Nitro Man on the Hard difficulty.
Commando N	Reach Commando Man on the Normal difficulty.
Solar H	Reach Solar Man on the Hard difficulty.
Strike H	Reach Strike Man on the Hard difficulty.
The Keeper H	Reach The Keeper Man (Strike Man Stage) on the Hard difficulty.
Commando H	Reach Commando Man on the Hard difficulty.
Solar E	Reach Solar Man on the Easy difficulty.
W Archive E	Reach the first Wily Archive on the Easy difficulty.
Blade N	Reach Blade Man on the Normal difficulty.
Block Devil H	Reach Block Devil on the Hard difficulty.
Wily Machine N	Reach Wily Machine on the Normal difficulty.

- Trophies
Successfully complete one of the following tasks to get a trophy:

Bronze Trophies
Whomp Wily!	Clear the game once.
Trusty Sidearm	Overcome the 8 bosses with just your default weapon.
Superhero	Clear the game on hard.
World Warrior	Overcome one of every type of enemy.
No Coffee Break	Clear the game without using any energy, mystery, or weapon tanks.
Silver Trophies
Invincible	Clear the game without dying.
Destroyer	Overcome 1000 enemies.
Hard Rock	Make it to a boss room without getting damaged.
Tenacious	Clear the game without continuing.
Headbanging	Overcome the 8 bosses without your helmet on.
Blue Bomber	Clear the game in under an hour.
Mr. Perfect	Clear the game without getting damaged.

- Recommended Boss order
Overcome the Bosses in the following order with the indicated attack:

Blade Man (use Commando Bomb)
Nitro Man (use Chill Spike)
Solar Man (use Water Shield)
Commando Man (use Wheel Cutter)
Chill Man (use Solar Blaze)
Pump Man (use Electric Wool)
Sheep Man (use Mega Buster)
Strike Man (use Triple Blade)

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