These are several shots of the 65-foot tall, 82-foot wide, and 185-foot long giant Godzilla statue being built as part of the the Godzilla Interception Operation attraction at the Nijigen no Mori theme park in Awaji, Japan. When open, there will be a zipline ride that zips you right into

This is a video from Youtuber Art Of Engineering discussing at length how both electromagnetic and pneumatic drop towers work, and how they operate safely. I didn’t actually bother watching the whole video but I assume the answer is they don’t, and every time you ride one you’re risking it