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This page is about Bass' support unit, Treble/Gospel. For other articles with "Gospel" in the title, see Gospel.

Treble, known as Gospel (ゴスペル Gosuperu?) in Japan, is a wolf-like support robot created by Dr. Wily to work with Bass in a similar way to Rush with Mega Man. Unlike Rush, Treble possesses considerable offensive capabilities to support Bass in battle. Bass can also fuse with Treble to gain wings and fly, as well as to improve his offensive capabilities.

Video game appearances

X8NavigatorAlertIconEdit This section requires expansion.

Mega Man 7

Mega Man 8

Mega Man & Bass

Mega Man 10

Mega Man 2: The Power Fighters

Rockman Strategy

In Rockman Strategy, Treble fights alongside Bass as a boss in the Room of Building Blocks. The pair are accompanied by Pharaoh Man and Knight Man.


Mega Man & Bass CD data



Treble seems to be an almagation of sorts of all of Mega Man's support characters, though many of his functions are imitations of Rush's.

Flight ability


Treble can fly to transport Bass like the Rush Jet. This function was only used in the opening animation of Mega Man 8.

Super Adapter


Super Bass


The Super Adapter allows Treble to merge with Bass, acting like an armor that increases his strength and gives him the ability to fly and perform a flying fist attack. Unlike Mega Man's Super Adapter, Bass has the ability to fire either a regular charged shot or a rocket punch, as opposed to just the rocket punch. It was created by Dr. Wily using the parts Bass had stolen in Dr. Light's lab in Mega Man 7, which were originally planned to enhance Rush's Super Adapter. Bass used this in the second battle against Mega Man in the Wily Castle.


Other appearances:

Support Item


In Mega Man 2: The Power Fighters, Treble appears to assist Bass for a limited time when he takes the Support Item dropped by Eddie. Treble shoots from his mouth when Bass attacks with a normal shot, and dashes at enemies at high speed when Bass fires a charge shot or performs a somersault kick. Treble also jumps when Bass does so, but doesn't attack during the jump.


Treble Boost

Treble Boost
Trebleboostsp2 M&btrebleboost R&fccftrebleboost TrebleR

The Treble Boost, known as Gospel Boost (ゴスペルブースト Gosuperu Būsuto?) in Japan, is another Adapter used by Bass in his fight against Mega Man in Mega Man 8. While using it Bass can fly and fire powerful charge shots and laser beams. In the games Mega Man & Bass and Mega Man 10, Bass can buy this ability in the item shop, which allows him to fly for a limited time and fire stronger shots in three directions at the same time. In Rockman and Forte: Mirai Kara no Chousensha Bass can also buy the Treble Boost and this time it can fire in 1 of 7 directions, but can only be used once.

Mega Man 8: Used by Bass in the Wily Tower, not usable
Mega Man & Bass: Purchase from Auto's shop after defeating three Robot Masters
Mega Man 10: No prerequisites

Damage Data Charts

Damage values in units in Mega Man & Bass.

TBgba Treble Boost
Boss Damage
Cold Man 2
Ground Man 2
Astro Man 2
Tengu Man 2
Pirate Man 2
Burner Man 2
Magic Man 2
Dynamo Man 2
Atetemino Proto 2
King 2
Jet King Robo 0
Wily Machine 2
Wily Capsule 2

Damage values in units in Rockman and Forte: Mirai Kara no Chousensha.

R&F2TBicon Treble Boost
Boss Damage
Dangan Man 1
Konro Man 1
Aircon Man 1
Komuso Man 1
Clock Men 1
Compass Men 1
Rockman Shadow 1

Damage values in units in Mega Man 10.

MM10-TrebleBoost-Icon Treble Boost
Boss Damage
Blade Man 1
Pump Man 1
Commando Man 1
Chill Man 1
Sheep Man 1
Strike Man 1
Nitro Man 1
Solar Man 1
Weapons Archive (Elec Man) 1
Weapons Archive (Wood Man) 1
Weapons Archive (Gemini Man) 1
Weapons Archive (Ring Man) 1
Weapons Archive (Napalm Man) 1
Weapons Archive (Flame Man) 1
Weapons Archive (Slash Man) 1
Weapons Archive (Frost Man) 1
Weapons Archive (Tornado Man) 1
Crab Puncher 1
Block Devil 1
Wily Machine No. 10: 1st Phase 1
Wily Machine No. 10: 2nd Phase 1
Wily Capsule 1

Treble Item


Treble Item is an item that Bass can buy for 20 Screws in Reggae's shop. When used, Treble appears and gives a random item to Bass, similar to Mega Man's Eddie Call.


Treble Rescue


Treble Rescue is an item that Bass can buy for 30 Screws in Mega Man 10. It acts similar to the Beat Call, saving Bass from bottomless pits by using the Treble Boost for a few seconds.



In Bass' ending from the Japanese version of Mega Man: Battle & Chase, Wily contacts Bass. During the conversation, Bass orders Treble to cut the communication when he got angry with Wily, suggesting Treble is the source of the communication. As only their voices are heard, it's unknown if Treble can only reproduce the voices or is able to show images like the Rush Vision.


Other Media

Mega Man (Archie Comics)

Treble has appeared in several Archie Comics issues, notably from the Mega Man and Sonic the Hedgehog based series during the Worlds Collide crossover. His Archie debut actually took place in Sonic the Hedgehog Issue 250, though he also appeared in Mega Man Issue 27, Sonic Universe Issue 54, and Sonic the Hedgehog Issue 251. His first appearance featured him getting annoyed with Dr. Eggman's robotic lackeys, Orbot and Cubot, while the latter three featured him joining Bass and Metal Sonic in battling Mega Man and Sonic. Despite proving a formidable opponent, he and his two teammates were defeated, and then enveloped by the Super Genesis Wave. At the end of the battle with Mega Man and Sonic, Mega Man noted that Treble and Bass were too badly damaged to join together, a nod to the existence of Treble's Super Adapter function. Treble and Bass were subsequently restored to their proper place in reality by Super Mega Man.

Short Circuits

Treble has also appeared in the series' Short Circuits humor strips, first appearing in Issue 4 alongside Bass, Proto Man, and Rush, all of them hoping to be included in the comic. Though not physically present, he was also mentioned in one of the "Off Panel" strip from Sonic Universe Issue 54 where Bass and Metal Sonic's rock duo prompted Mega Man to note that he had expected Bass to merge with Metal Sonic like he did with Treble. This was in fact a nod to an abandoned concept from the crossover.



  • Treble is one of the many characters who have music-inspired names, Treble being a musical term and Gospel a type of music.
    • Treble refers to the treble clef, the high clef in music. Likewise, Bass refers to the low clef in music.
  • Despite the fact that Bass made a small cameo in Mega Man 9, Treble was nowhere to be found.
  • When using the Treble Boost, Bass's wings are smaller in Mega Man & Bass than in Mega Man 8, possibly due to limitations.
  • Treble seems to be the only other robot or person Bass shows any concern for, though this may be because of his support role rather than any actual affection on Bass's part.

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