Mech Dude

Before
Mech Dude is a machine built by Thanos Dude in the late 8th century BC. Mech Dude is armed with a thermonuclear missile banned by the UN. Mech Dude has an iron-titanium alloy body with a carbon fiber interior. Mech Dude also enjoys playing basketball on long hot summer days.

Slope Dude 4
Mech Dude is sent to Earth in a rocket ship to kill Slope Dude. Mech Dude arrives on Earth and launches his thermonuclear missile at Slope Dude, but it fails to kill him. Mech Dude fails this task and is never seen again in the Central Timeline.

Slope Dude 5
During the events of the End of the Line, the Bisector rips a hole through the Slopeverse and evidently brings back Mech Dude. During his return Mech Dude immediately attacks the Bizarre Timeline's Slope Dude, due to his instructions given by Thanos Dude. Mech Dude fails in doing so, again, and is blasted into the Bisector thus ending the reign of terror which was unfolding at the time. Mech Dude presumably dies.