Unlock challenges:
There are two types of challenge. Type 1 are like mini - stages or battles and is accessed from the menu Challenge. Type 2 are like the Xbox achievement and need not be unlocked for them .Type a leader and challenges Minibosses generally require reaching the appropriate manager in the corresponding difficulty mode ( the challenge is unlocked when you reach the boss, not when you kill ).
Easy Chief Challenges :
Get to the boss on easy mode .
Challenges Minibosses easy:
Minibosses arrives in easy mode or normal.
Chief Challenges Drive:
Comes the boss in hard mode.
Minibosses Challenges Drive:
Minibosses reaches the hard mode .
Chief Challenges normal:
Reaches the head in normal mode.
Minibosses Challenges normal:
Minibosses arrives in Normal Mode.
Employs the following weapons to defeat the bosses more easily:
Sheep Man:
Mega Bruster .
Pump Man:
Electric Wool.
Chill Man:
Solar Blaze .
Nitro Man:
Chill Spike.
Commando Man:
Wheel Cutter.
Balde man:
Bomb command .
Strike Man:
Triple Blade.