Rain Flush

Rain Flush is Toad Man's power. This creates an acid rain storm that affects all things on the screen (provided they are vulnerable to it). This is the perfect weapon to use on Bright Man. It is also effective against Charge Man in Mega Man IV. The Rain Flush can also be used as a substitute against Pharaoh Man if one has run out of Flash Stopper, though you'll have to contend with Pharaoh Man's speed.