After a brief second of shaking it, Herman swallows the rattle, prompting Roger to panic and call 911 and to rush the baby to the emergency room.
The laser detaches itself from the ceiling and flings a table of scalpels and hypodermic needles at Roger, who avoids them, but is electrocuted in the process.
The laser flies around the room and lodges itself under Roger's stretcher and sends him and Herman both ejecting from the emergency room and causing Roger to gag up the rattle, and when Baby Herman to again swallow it before crashing into a wheelchair, they then fly down the hall and into an open elevator shaft due to wet floors causing the wheelchair they landed on to skid out of control.
Eventually, they end up in a room with piles of gas pumps which are ignited and send them the pair launching miles into the air.
[5] It was the first animated short Disney had produced in 16 years to accompany the original release of a feature film, since Winnie the Pooh and Tigger Too in 1974.
The animal hurls Roger and Baby Herman into the air, sending them flying out of the field, and causing the two to land crashing into a roller coaster carriage which is traveling slowly up.
As the credits finish rolling, Baby Herman says that he cannot take anymore of Roger as a woman gives him a balloon and he pops it with his cigar.
Roller Coaster Rabbit (along with Trail Mix-Up) was produced at The Magic of Disney Animation located at Disney-MGM Studios in Lake Buena Vista, Florida.
Spielberg wanted the short to appear with Arachnophobia, Hollywood Pictures' first feature and a co-production between Disney and Amblin.
[13][14] Spielberg, who controlled a 50% ownership stake in the character, decided to cancel Hare in My Soup, the third short that had entered production.
The bees proceed to chase him, so Roger runs into a lake, where he panics at the sight of a shark's dorsal fin (which is actually controlled by Droopy).
The boulder proceeds to roll down a hill, knocking over a tree trunk (with the same sound effects as a bowling pin), and then flying off a cliff.
Eventually, Roger, the bear, the log, the beaver, the boulder, and Baby Herman all land on top of Old Predictable Geyser in that order.
Then, Old Predictable Geyser erupts, sending Roger, Herman, the Bear, the Beaver, the boulder and the log flying out of the studio, passing the Hollywood Sign.
The group flies over half of the country all the way to Mount Rushmore and they end up crashing into the mountain, destroying all the carving of the presidents.
Roger retorts that it's "not as if it's the end of the world," but then sticks a US flag (made of his clothes) in the ground which punctures the Earth, making it deflate and blow away like a balloon.
Unlike the two previous shorts, the animation (still traditionally hand-drawn on paper) and compositing was done digitally in the studio's CAPS system.
On March 12, 2013, Walt Disney Studios Home Entertainment remastered and reissued all three shorts as part of the 25th anniversary Blu-ray release of Who Framed Roger Rabbit.