Go to Tranquillity with Create-a-bot using any ground vehicle form. Find the building with two large smokestacks, located near the bridge between Downtown and the Junkyard. Climb up one of the smokestacks, then change to vehicle mode. If you are on the northern smokestack, face north. If you are on the southern smokestack, face south. Hold R to boost off of the smokestack. Continue holding R, and Create-a-bot will float in one place until his boost energy runs out.