Fusion cannon

The fusion cannon is Megatron's primary weapon.

A release of lubricant is quite common when seeing this.

The fusion cannon is Megatron's ultimate weapon. It is attached to his right arm and is devastatingly powerful. It strikes fear into the cores of both the Autobots and the Decepticons, though its actual destructive capacity can be strangely uneven.

History

Cartoon canon

Fire on the Mountain

Megatron could remove his cannon from his main body. One time, Brawn stole it from him and used it against him. Megatron was not amused.

More than Meets the Eye

Megatron's fusion cannon

Fusion cannons are also oddly useful when you just wanna kick your lieutenant for shooting you in the back but don't want to have to walk over to him... yeah, we don't question that.

Triple Takeover

An attempted coup from Devastator is another matter. The shots kept bouncing off him, and Megatron had to resort to a 5-way fistfight (Starscream, Astrotrain, and Blitzwing were fighting for leadership too) as an alternative.

MUX Continuity

Megatron's fusion cannon

In June of 2010, Trojan managed to tear Megatron's fusion cannon off Megatron's arm and bring it back to Autobot City for study. Megatron was able to build another, and in 2014 the Autobots destroyed their copy of it to keep it from falling back into Megatron's hands.

OOC Notes

• The deep percussive note at the beginning of the iconic fusion cannon sound effect (used throughout G1 and Animated) is an old "stock" sound used frequently in American animation, most notably within Hanna-Barbera's Scooby Doo where it was used to signify cast members or objects falling on the ground, running into walls, etc.