Screw Crusher (スクリュークラッシャー) is Punk's special weapon. It throws a saw that moves up for a while and then loops down. It is imperative in the battle against the Wily Machine's second form, as it is the only weapon that'll harm it. It does considerable damage, and can be used several times as it doesn't use much energy. However only one can be on the screen at a time.
Screw Crusher can also be obtained in Mega Man 10, Mega Man being the only playable character able to use it. In this game Mega Man can have up to four onscreen at a time, and it is most effective against Ballade, Pump Man, Chill Man, and the Weapons Archive's data of Ring Man and Tornado Man. It can also be used to disarm some enemy shields when fired fast enough.
In Mega Man III and Mega Man 10, Mega Man can use eight Screw Crushers with only one weapon energy unit. With a full weapon energy gauge, it can be used 152 times in Mega Man III and 224 times in Mega Man 10.
|Mega Man Classic series||Blade Launcher • Flame Sword • Gyro Attack • Metal Blade • Quick Boomerang • Ring Boomerang • Rolling Cutter • Screw Crusher • Shadow Blade • Silver Tomahawk • Slash Claw • Tengu Blade • Triple Blade • Wheel Cutter • Shark Boomerang|
|Mega Man X series||Boomerang Cutter • Crescent Shot • Magma Blade • Ray Claw • Shadow Runner • Sonic Slicer • Spinning Blade • Spin Wheel • Twin Slasher • Wind Cutter|