Rushing Roulette is a 1965 Warner Bros. Merrie Melodies cartoon directed by Robert McKimson.
McKimson directed one other Road Runner cartoon the following year, Sugar and Spies.
Unlike the ten Rudy Larriva-directed Road Runner shorts after Run, Run, Sweet Road Runner (which featured a series of pre-recorded music cues that didn't follow the action on-screen as closely), Rushing Roulette featured an entirely original score by Bill Lava.
As the cartoon opens, Wile E. tries snagging the Road Runner with a lasso, but is merely dragged along due to the bird's speed, and ultimately collides with a cactus.
Wile E. puts Ajax Stix-All Glue on the pavement to cause the Road Runner to get stuck.
He tries to play "Believe Me If All Those Endearing Young Charms" (a repeat gag from the Private Snafu short "Booby Traps", as well as "Ballot Box Bunny" and "Show Biz Bugs", both directed by producer Friz Freleng) but keeps playing the wrong note.
Standing atop a tall, narrow rocky platform between two sloped canyon walls, Wile E. pushes a boulder off of it in an attempt to squash the Road Runner on the pavement below, but the boulder misses and rolls up the wall of the canyon, then rolls back and collides with the base of his platform, and then rolls up the other wall and back again, continuing to eat away at his platform until he's at pavement level.
Finally, Wile E. uses a personal helicopter to drop an anvil on the Road Runner from above, but as the Road Runner enters a tunnel, Wile E.'s helicopter crashes into the wall above the tunnel; as he drops to the ground, so does the anvil, which lands right on his head.