Mindbender, Indoor roller coaster in Galaxyland, Edmonton, Canada

Mindbender is a steel roller coaster located inside the Galaxyland amusement park in Edmonton, Alberta. The track winds through three vertical loops and follows a winding path across the climate-controlled indoor space.

Mindbender opened at Galaxyland in West Edmonton Mall on December 20, 1985, costing $6 million and designed by Werner Stengel with Anton Schwarzkopf. After a 1986 derailment killed three riders, it reopened in January 1987 with three-car trains and extra wheel assemblies. The mall closed it on January 30, 2023, after 37 years; removal finished by February 2025.

The name was borrowed from the ride's twisting layout, and in high season the last car of one train was turned to face backward, so riders could not see what came next. The trains later ran at Indiana Beach's All American Triple Loop.

The ride was accessible to people between 1.5 meters (4 feet 11 inches) and 1.96 meters (6 feet 5 inches) tall. The constant indoor temperature provided consistent conditions throughout the year.

During high season, the last car of one train was reversed, so riders faced backward through the loops without seeing what came next. In 1987 testing, equipment bolted into a train measured a peak of 5.5 g in the third loop.