Distortion

The artifact Distortion can be found in the Damp Caverns. This artifact locks a randomly selected ability for one minute, and then locks another one. In order to get this artifact, you must travel to the top right of the stage, until you can't go farther without falling off the fungi-infested platforms. Once you're there, if the world generated the artifact, you will see three platforms that are too far to be jumped on. Use the Enforcer's rockets, or the Bandit's dynamite to activate a dark grey box on one of the platforms. Congratulations, the artifact has spawned on a platform right under you.

NOTE: If you have a Photon Jetpack, or enough Rusty Jetpacks and Paul's Goat Hoofs, you can jump on the ledge and activate the box.