Rush Search

Rush Search (ラッシュサーチ), also called Search Rush, is a function of Rush in the Mega Man series. When used, Rush teleports in front of Mega Man's location and starts digging to search for items. If Rush is hit by an enemy, he will be knocked back and teleport away, cancelling his action. When called in an area where he can't dig, such as in front of a wall or pit, he will fall asleep and take a nap before leaving. Besides items, Rush may find garbage such as apple cores and old boots, which are useless and disappear after a few seconds.

Mega Man 7
Rush Search is obtained by finding it in Freeze Man's stage or by purchasing it in Big Eddie for 120 Screws after finding Auto's Hyperbolt.

Besides finding items, Rush will bark when called near a secret area, such as the areas where Proto Man and Beat are hidden. He also barks when he finds a hidden item, like the Exit and Energy Balancer.

In Junk Man's stage, there is an easter egg: if Rush Search is used under the giant Famicom at the very beginning of the stage, he will dig up a Game Boy. This easter egg was removed in Mega Man Legacy Collection 2.

Mega Man & Bass
"Rush will dig out a hidden item for you. Believe me, he is a good Digger!"

- Auto

Rush Search is obtained by purchasing it in Auto's shop with 100 Screws. It becomes available in the shop after the defeat of three Robot Masters. Its function is the same as its previous appearance. Several of the CDs from the Mega Man & Bass database can only be recovered using Rush Search, and the CD Finder upgrade helps locate them by temporarily showing where they are buried.

Other appearances
Rush's Excavate (挖掘) ability in Rockman Strategy has the same function of Rush Search, having a chance of finding an item.

Items
Items that can be found with Rush Search.

Mega Man & Bass
Besides items, sometimes Rush Search will also show one of four possible animations: Rush is pinched by a crab, pulled by something underground, causes an explosion on his face, or releases underground water and gets wet.

Other media
While not mentioned as Rush Search, Rush used his enhanced olfaction to help Mega Man.

Mega Man (Archie Comics)
In the crossover Worlds Collide, Rush used his olfaction to guide Mega Man, Proto Man, Sonic and Tails in the Skull Egg Zone.

Rush also used a searchlight on his nose to provide light in the ruins of the Temple of the Moon.

Rockman World 2
Using his olfaction, Rush discovered that Dr. Wily stole the time machine from the Time-Space Research Laboratory and was able to track him to his Wily Castle.

Trivia

 * Although the Rush Search artwork from Mega Man 7 shows Rush with a light on his nose, this is not displayed in the games, with Rush simply using his nose to smell a nearby object and digging the ground. However, Rush was shown using a light in other media, such as the Ruby-Spears animated series (predating the game) and the Archie Comics series.