Sine Faller

Sine Faller (サインフォーラー) is a flying shooter enemy from Mega Man X that drops down certain ceiling holes (mainly in Boomer Kuwanger's stage) to shoot at X.

Sinedropper
Sinedropper, known as Sine Faller in Japan, is a slightly larger version from Mega Man X: Command Mission. Sinedropper has a claw hanging from the bottom that holds a Toxic Bomb, which can cause the Virus status. Once the bomb is dropped, they may run away. Like the original, they can attack with shots.

A Sinedropper is available from the beginning in the Deployment Center.

Zennydropper
Zennydropper, known as Zenny Faller (ゼニーフォーラー) in Japan, is as Sinedropper that holds a Zenny bag instead of a bomb. The amount of Zenny it drops when defeated doubles in each of its turn, but Zennydroppers tend to run away.

Gift Box
Gift Box (ギフトBOX) is a variety of Sinedropper that holds an item. The item it drops depends of how many turns it is alive, but they tend to run away.