If you are looking to drop your Karma rating into the red quickly without doing any missions or side missions, you can run around and slaughter innocents and use Drain decrease your blue Karma. However, if you kill yourself (try using Grenades) and respawn by a hospital, a ton of people will spawn with you making this much easier. Repeatedly shoot people, Drain one or two and kill yourself to become Infamous in no time (actually, it can take about an hour to fully lose your Hero rating and enter the red).
If you are looking to drop your Karma rating into the red quickly without doing any missions or side missions, you can run around and slaughter innocents and use Drain decrease your blue Karma. However, if you kill yourself (try using Grenades) and respawn by a hospital, a ton of people will spawn with you making this much easier. Repeatedly shoot people, Drain one or two and kill yourself to become Infamous in no time (actually, it can take about an hour to fully lose your Hero rating an...
To advance your good or evil ranks easily, use the sick citizens on the ground around the city. Healing them gives you three good XP points, nudging your Karma Meter slightly up. Conversely, you can drain their energy and gain the same points in an evil manner, nudging the meter downwards. Use the ample fallen people to aid in your path towards righteousness -- or whatever.
Instead of going through the game twice as good and evil to get all of the main mission trophies (like the Trophies for "Good Eats" and "Evil Eats"), do the mission and finish it but the second after the mission success box pops up, pause the game and abandon the mission. You'll forfeit the mission and have to do it over, but you'll still get the Trophy that goes along with it. Now, just redo the mission and play it the opposite manner that you did before (good or evil). You'll get that Trophy, too.
Instead of going through the game twice as good and evil to get all of the main mission trophies (like the Trophies for "Good Eats" and "Evil Eats"), do the mission and finish it but the second after the mission success box pops up, pause the game and abandon the mission. You'll forfeit the mission and have to do it over, but you'll still get the Trophy that goes along with it. Now, just redo the mission and play it the opposite manner that you did before (good or evil). You'll get that Trop...
After you get Thunderstorm you have to protect three separate electrical boxes to restore power. Use Thunderstorm to do so, then die, walk away from a box your protecting or restart the mission all togeather to keep all the XP you have earned. If you're using Thunderstorm you can kill everyone very quickly and rack up a good deal of XP quickly.
An easy way to get the AC/DC Trophy is to go to one of the substations and, before you re-establish the circuit, absorb electricity from it. It doesn't run out, so after a few minutes the Trophy will be yours.
Addition by cheesecake55:
To get the AC/DC Trophy, you'll need to drain 750 Megawatts of power. Find a substation and start draining it with L2. Then, WITHOUT LETTING GO OF L2, hold down the PlayStation button, turn off the controller, and Cole will continue draining electricity with the controller off, allowing you to go about your business. You will only get the Trophy once you stop draining power, so you will have to check every once in a while.
An easy way to get the AC/DC Trophy is to go to one of the substations and, before you re-establish the circuit, absorb electricity from it. It doesn't run out, so after a few minutes the Trophy will be yours.
Addition by cheesecake55:
To get the AC/DC Trophy, you'll need to drain 750 Megawatts of power. Find a substation and start draining it with L2. Then, WITHOUT LETTING GO OF L2, hold down the PlayStation button, turn off the controller, and Cole will continue draining electricity with t...
In The Warren, find a Dustmen Conduit. These guys spawn small, scorpion-like creatures. These creatures die very easily, and the Conduit will spawn 3 at a time at a frequent rate. Find a safe spot (like a rooftop) where the Conduit will have trouble hitting you with his rocket launcher, and the creatures won't be able to get you. Then from up there you can safely attack the creatures for easy, unlimited XP.
(Unconfirmed) Note: You have to be an Outlaw or Infamous to attempt this. Go to the prison where there are ample SWAT officers. Take a SWAT officer out, but don't kill him. Instead, use the Healing Touch Triangle move and, while he's getting up, take him out again. Do this repeatedly for infinite experience.
Although there are tons of energy sources for you to drain in most cases, you sometimes get caught in a tough spot trying to survive at a location where there's no more energy to drain.
Use your lightning bolt (costs no ENG) to charge a battery, light post, green dumpster, train car, or other drained energy source, then drain it once it is charged. If the object doesn't overload and explode like Zeke's batteries, you will be able to recuperate your entire energy meter and have a good place to use your precision shot to take out enemies.
Additions by TheToro67
Although there are tons of energy sources for you to drain in most cases, you sometimes get caught in a tough spot trying to survive at a location where there's no more energy to drain.
Use your lightning bolt (costs no ENG) to charge a battery, light post, green dumpster, train car, or other drained energy source, then drain it once it is charged. If the object doesn't overload and explode like Zeke's batteries, you will be able to recuperate your entire energy meter and have a good pl...
