To streak around Steelport, you need to hit a crib or store and remove all your clothing- although shoes and boots are allowed for streaking. When you are nekkid, head streetside and double tap down on the D-Pad to initiate the streaking run. The character will then have a certain amount of time to shock a number of people. You don’t need to do this, but it keeps the time going so you don’t have to keep restarting. Go to a busy street like the main strip downtown and you should hit level 8 streaking- the longest you can streak at one time easily.
Big Air Distance
There are a few good ways to get this challenge completed. One way is to wait until after the zombie outbreak on Arapice Island happens and the bridges are raised. You can launch off them for some large distance each time, but your car will take some hefty damage on landings. Another way is to head to the airport and launch off the many small solar panel triangle ramps there. You won’t get as much distance, but there are more jumps at a time and your vehicle will last longer.
Gang Members Taunted
This is one of the more pain in the ass challenges to complete. To taunt a gang member you need to run up to any of the enemy gangs and press left on the D-pad. When you do, you will aggravate them, give you a star wanted level, and they will attack which will then not allow you to taunt any of the remaining gang members in the area. To make this somewhat easier, taunt gang members near a store you own, so that after you taunt them, you can run inside to lose your wanted level and can then go out and taunt another gang member close by. You can’t taunt the same member twice so it makes it even more difficult, but if you happen to come across two gang members walking together, you can taunt them both at the same time.
Windshield Cannon Distance
Basically the idea for this is to drive and hit a solid object forcing your body to shoot out the windshield. Seems easy enough but many times you’ll stay in your car and other times you won’t fly out far at all by hitting walls or poles. The best place I found is to hit guard rails and launch over them for the most distance. Go to The Grove and there is an Insurance Fraud activity near the bottom. Activate it and then go to the west and there is a dead end road with a guard rail at the end. You don’t need to do it during the Insurance Fraud activity, but the rag doll controls during it let you get some extra distance. Keep running into the guard rail at the end of the street over and over and you’ll get this in one or two activity tries.
Vehicle Surfing Time
To surf on a vehicle, you just need to jump top of its roof and hit the prompt when it appears. When it starts, a meter will appear and you will need to move the left analog stick left and right, trying to keep the arrow in the middle and not let it go too far to the left or right. The vehicle surfing mini-game will continue until either you fall off or until the car comes to a stop. When you fall off or the car stops, just go and hop on another car and repeat.
People Run Over
This is another challenge that will come during the course of the game. If you still find yourself lacking in the body count department, you can either head downtown where there are lots of people mulling about the sidewalks, or take a car over to Arapice Island and mow down load of zombies for an even faster way to rack up the kills.
Oncoming Lane Distance
This challenge will come over time as long as you make a conscious note to always drive in the opposite lanes, especially when driving on highways. Alternatively, you can just drive back and forth on the freeways in the direction over and over to get the full amount completed the quickest.
This challenge will come over time as long as you tend to use the powerslide almost every time you take a corner. Hit the A/X button to skid around corners at high speeds and when you are almost lined up with the next street, push the opposite way of the turn to keep the slide going on longer. If done right, you can usually get a 1-2 second slide from each turn.
The best place to get this is to take a Kenshin or equally fast bike to the airport and burn up and down the runway while pulling back on the left stick to bring the front wheel up and pull a wheelie. The airport offers the most wide open area without the worry of any traffic interrupting your run.
Decker Specialists Killed
Much like the “destroy 25 tanks” challenge, go to a Decker controlled territory that you HAVE NOT taken full control of. Cause a ruckus to bring out the Decker’s and SWAT and grab the tank when it arrives. Start using it to destroy Decker vehicles and soon enough they will start bringing out the rollerblading girls with the hammers. Unlike the other specialists, these usually come in pairs on the back of cars, so using the tank to destroy the car they are behind will take out two at a time, allowing you to get this challenge rather quickly. If you have already taken over all Decker territories, you can go to a Mayhem Activity in the territory and go nuts until the specialists arrive and kill them there.
Luchadore Specialists Killed
Much like the “destroy 25 tanks” challenge, go to a Luchadore controlled territory that you HAVE NOT taken full control of. Destroy everything in sight to bring out the Luchadore’s and SWAT and grab the tank when it arrives. Start using it to destroy the gang vehicles and soon enough they will start bringing out the grenade tossing enemies. Kill them when they appear and more and more will start to arrive. If you have already taken over all Luchadore territories, you can go to a Mayhem Activity in the territory and go nuts until the specialists arrive and kill them there.
Morningstar Specialists Killed
Much like the “destroy 25 tanks” challenge, go to a Morningstar controlled territory that you HAVE NOT taken full control of. Cause a ruckus enough to 4 star the gang and the cops and they will start to bring out the choppers. The specialists are the bald snipers that arrive in the Morningstar helicopters, making them the slowest of all the specialists to get competed. If you have already taken over all Morningstar territories, you can go to a Mayhem Activity in the territory and go nuts until the specialists arrive and kill them there.
Car Torpedo Damage
For this challenge, you need to drive your car and then press Y/Triangle to leap out and send the car careening into whatever is in front of it. The quickest way I found to hit 2000 was to grab a fast car like a Temptress or Raycaster and then find a street lined with paper boxes and bus stops. Drive past them and then turn and line them up. Drive full tilt towards them and leap out at the last second. The indicator for how much damage you’ve done comes up in percentages for some reason, so you’ll need to check the challenges page to see how close you are to completing it. By hitting multiple objects in on run, you’ll complete the challenge in no time.
This challenge will likely be completed during the campaign by driving and flying. Each time you narrowly miss hitting a car, person, or building, you will get a near miss indicator in the top right corner. If you need to boost it every once in a while, you can head to the freeway and drive close to the cars there, as well as grab a VTOL and buzz past the buildings downtown.
Vehicle Mod Spending
This challenge is a rather easy one and can be done anytime you have twenty grand to spare. Go to a Rim Jobs with a lot of cars in your garage and start upgrading any and everything you can on each car, starting with the engines, tires, and so forth, to get the most expensive items out of the way. DO it to a few cars and you’ll hit twenty thousand spent fast enough.
Human Shields Used
If you use human shields a lot during the course of the game, then you won’t need to worry about this challenge. If you rarely used them, then you’ll need to head some place like downtown where there are lots of people and start running up to people and press Y/Triangle to grab them. Press Y/Triangle again to toss them and then immediately move to the next person. Rinse and repeat until you ding 150.