Sola 0 (ソーラ・０,Sōra 0?) is a flower-like enemy from Mega Man 10 that charges solar energy to fire a solar ray. They are invincible while charging energy. They appear in Solar Man's stage, Wily Castle stages 2 and 3 and Special Stage 3. In Hard Mode they also appear in Pump Man's stage.
Sola 0's name is probably a pun of "solar ray", as zero is written as "rei" (零) in Japan.