Stealth

Stealth (ステルス) is a stealth plane-like virus that appeared in Mega Man Star Force series that appeared in Mega Man Star Force 2 and Mega Man Star Force 3. It can vanish entirely, then appears and shoots down its row with twin guns.

Battle Cards
Stealth Laser (ステルスレーザー) is the Battle Card obtained from Stealth viruses.

Trivia

 * The Stealth resembles an American Northrop Grumman B-2 Spirit.