Instructions
Build a roller coaster on any empty lot. To build a roller coaster, click on the ̶0;roller coaster̶1; icon and then click on the empty lot to place a track piece. Click the end of the track to put down another track piece. Click the ̶0;pylon̶1; icon to lift the track off the ground. Click "Raise/Lower Pylon" if you want to raise or lower certain track pieces.
Hire maintenance workers to research the roller coaster. When the research is complete, you have the option to pay for a ride upgrade. Pay to upgrade the roller coaster to at least level two. The upgrade price depends on the roller coaster size.
Click on the pylon where you want the loop to begin. Click "Delete." Click on "Loop - Pylon" to start the loop. Click another pylon on the track where you want the loop to end.