Muppet Adventure: Chaos at the Carnival

Muppet Adventure: Chaos at the Carnival is a video game released for the Apple II, Commodore 64 and MS-DOS in 1989 by Hi Tech Expressions. It was ported to Nintendo Entertainment System in 1990. The game features Muppets created by Jim Henson in a series of carnival-inspired mini games searching for enough keys to rescue Miss Piggy from Dr. Grump. These mini games include: Bumper Cars, Funhouse, Tunnel of Love, Duck Hunt and Space Ride. The game was initially released for the Apple IIc with a bug which caused it to be unwinnable. Upon achieving the win condition versus Dr. Grump, the game would enter an endless cycle of taking the player back to a previous level, instead of having Dr. Grump be defeated.

NES port
The NES version of the game is unique from its computer counterparts in that it has on-screen hearts designating hit detection, but eliminates the two-player mode. The player is required to complete each level with a specific character. The initial levels, which you can complete in any order, are as follows;

Kermit the Frog rides an inner tube down a river, Fozzie Bear must escape a Fun House of desserts, Gonzo flies a spaceship and Animal drives a bumper car. After completing these initial levels, the player then controls Kermit the Frog, armed with a feather, in Dr. Grump's castle.