RC Shroober

RC Shroobers are light blue Shroobs with purplish pink spots that has a pair of radio antennae attached to its head. Using its antennae, an RC Shroober can control electronic devices. The RC Shroobers are found in Yoob's Belly. As such, RC Shroobers were presumably in charge of converting normal Yoshis into additional Yoobs. Two different RC Shroobers who were tormenting Yoshis are each required to battle in order to save the Yoshis and enlist its help in escaping Yoob's Belly. The bros. eventually defeat them and gain access to Sunnycide.

In Mario & Luigi: Bowser's Inside Story and its 3DS remake, a single RC Shroober can be seen among the other frozen Shroobs if the player uses the Jump Helmet attack during the optional boss battle against three Shroobs.

Battle
An RC Shroober summons radio-controlled weapons with its antenna. Its attacks can be predicted based on the antenna it uses and which direction the radio waves point. Two antennae indicate that the RC Shroober will summon a radio-controlled UFO. This flying saucer would hover over a Mario brother and beam him up, causing damage. To counter this attack, Baby Mario or Baby Luigi has to use his Hammer to knock the UFO down as their older counterparts were being beamed up, sending the flying saucer crashing into the RC Shroober. If the radio waves point at Mario, he will have to defend against the UFO; if they aim at Luigi, he is the target.

RC Shroobers can also summon a radio-controlled mobile bomb if they use one antenna. When summoned, this bomb will circle around the brothers up to three times, attempting to hit Mario and Luigi and explode. The two brothers can dodge this attack by jumping. If one of the brothers jump on the bomb, it will malfunction, turn on the RC Shroober, and damage it. Eventually, the mobile bomb will explode on its own without hurting anyone. Additionally, if an RC Shroober jumps before summoning a mobile bomb, the little explosive stalls before starting on its circular path. The direction the RC Shroober's antennae point before the attack indicates which Mario brother the robotic explosive will attempt to attack first, just like with the UFO.

Names in other languages
RC Shroober Teleshroober