Imagine a Mech Rider Gnar.

Basically, instead of Gnar transforming, a giant mech crashes down from outer space while Gnar jumps in and proceeds to button mash until everything else dies.

Mini-Gnar: Gnar is now wearing futuristic alien armor instead of bones and cloth. He also has a helmet, because helmets win games. UNLESS IT'S HELMET BRO.

Q: Gnar tosses an adjustable reverse-ratcheting magnetic boomerang. (He did not steal two wrenches from Heimer, I have no idea what you're talking about.)

W: Stacks are glowing rings around an enemy. When detonated, these rings attempt to disintegrate the opponent they're attached to. Hyper boosts Gnar with light speed technology (Okay, maybe that's a lie.)

E: Gnar is apparently so much physically weaker that he requires a propulsion device to rocket him into the air. (Don't ask me)

Mega-Gnar: Gnar doesn't transform. A mech falls from the sky for Gnar to ride. During "transformation": A holographic targeting reticle hovers around Gnar dimly. As Gnar's rage meter fills, the reticle glows brighter and focuses better on Gnar, while a red tracking laser appears from the sky to attempt to scan Gnar. At max rage, the reticle flashes, the laser turns green, and BOOM! Gnar's in a mech now.

Q: The mech shoots a blob of unstable energy.

W: The mech scatters a cluster of explosives.

E: The mech propels itself upward and crashes down.

R: Preeetty much the same as before.