|Mega Man with the Rain Flush equipped.|
The Rain Flush (レインフラッシュ Rein Furasshu) is Toad Man's Special Weapon from Mega Man 4. Originally developed for agricultural purposes, Dr. Wily mixed acidic chemicals into the device to act as a far-reaching weapon. This manifests itself in a capsule that flies into the air and releases acid rain everywhere for a short amount of time.
Make a Good 48 Hour Mega Man Level
The Rain Flush is part of the arsenal of weapons in Make a Good 48 Hour Mega Man Level, voted in by the developers from a pool of the least-voted Screenwide weapons from the Make a Good Mega Man Level 3 weapons vote. The weapon functions as a hybrid of its appearances in both Mega Man 4 and Mega Man IV; it uses the energy consumption of its appearance in the former game, while possessing the multihit ability of its appearance in the latter. Also like in IV, it can weaken or put out fire hazards (such as Napalm and Solar Man's sun), and freeze Quicksand.