Lots of stuff. Search topic "moving pins" on pinside and you will find many threads on the subject.
Some basics:
Each location is different, and so are the pins. Find out as much information about both ahead of time to develop a plan and be prepared. Ask/know:
Where the game is. Are there stairs? Driveway, vehicle access, obstacles.
Find out how the game disassembled and make sure you can fit it in your vehicle. Take a tape measure. Does the head come off, or fold down? Does the owner have the keys?
Make sure all loose parts, coin box, and balls are removed before transport. Backglasses are best transported separately and carefully. Heads are often removed or folded down and strapped to the game.
If you are using two (strong) people, the typical ,carry process is to remove the back legs first, lower the back to the ground, then tip up the front and remove front legs. Most games have small furniture sliders on the back, as they are intended to be transported in this position at some time. From there it can be carried or loaded on a dolly. Some prefer moving straps. Take rests and be careful, no getting injured moving a pin! If someone needs a rest, the person on the back end lowers to the ground first, game tilted up to rest on its back.
Tools. You can never have too many. A ratchet and wrench set. Screwdrivers, a drill and bits. Removable painters tape and marker for labeling. Blankets and cardboard for packing and protecting. Flashlight. Ratchet straps or roll of stretch wrap.
There's more, but we need to know more details about the location coming from and going to. What game are you getting?