|Leon is predictable, as he drives obvious paths and will inevitably stop to taunt Chuck. Leon's main form of attack is to charge Chuck with his Slicecycle. He will not come at Chuck if Chuck is standing in a place where he cannot reach. Instead, he will just circle around the area until Chuck comes down.
Make sure to have at least three or four orange juices or food of equal healing power, and a medium to fast melee weapon (broadsword, Knife Gloves, Spiked Bat, etc.). If Chuck needs health, take the motorbike and head around to one of the casinos or bars around Fortune Park.
- Red motorbike
Even though Leon gives Chuck the keys to the red motorbike in front of the Arena, don't use it to attack Leon. At most, use the bike to get around when Chuck needs health or weapons. If the bike is broken, go inside a building and the bike will respawn.
- After the cutscene
After the cutscene, drive the bike to the middle of Fortune Park (between Atlantica Casino and Royal Flush Plaza) and dismount.
When he drives at Chuck jump away or dodge roll (if Chuck has this skill) then quickly run up, avoiding the chainsaw blades, and hit him two or three times. Repeat this until Leon is defeated.
- Trapping Leon
Alternatively, Chuck can also trap him within the grotto by luring Leon into an area where the space between the tree and the railing is narrow. Occasionally, Leon will become stuck inside the recessed entry leading to the maintenance room as he drives through the passage between the two large rocks at the center of the park. He cannot reverse, making him easy to kill. Ranged weapons are the ideal method of killing him in this situation, but melee weapons can also be used, though they do put Chuck at risk of coming into contact with Leon's chainsaws. Also, you can use the tree in the middle because it has a barrier. Just jump inside when he's charging at you and use a long weapon like the battleaxe or broadsword at him.
- Broadsword, Battleaxe and Laser Sword
You can use the tree in the middle because it has a fence. Jump inside when he's charging at you and he will still try to hit you even though you are inside and use a long weapon like the battle axe or broadsword at him when he hits the fence. Never use a short weapon in this strategy.
- Electric Rake - first strategy
Another easy way to defeat Leon create an Electric Rake; there is a rake right outside of the maintenance room in the grotto and a battery in the maintenance room.
Create the Electric Rake and stand on the maintenance room stairwell.
Since Leon will basically make only straight passes between the rock passage, he will not be able to hit Chuck if the player is careful. Chuck can easily take potshots at him as he passes.
- Electric Rake - second strategy
The Electric Rake can be used another way. Stand in the narrow passage (between the maintenance room and the save point) and position Chuck at an angle in front of the corner. Dodge Leon's charge. If done correctly, he will hit the corner, which allows Chuck to him a couple of times. Do this once or twice for an easy kill.
- Leading Leon
If Chuck leads Leon around the park long enough, he will follow closely. When this happens, drive down the stairs by the fountain. If done right, Leon will follow, drive down the stairs, and proceed to get stuck trying to climb back up the stairs, making him vulnerable to all attacks. Be cautious, however; his chainsaws can still hurt Chuck if Chuck tries to melee him. In addition, Leon often sharply turns and faces Chuck with a spinning burnout. Chuck will have to kill him fast, because after around a minute, he will successfully climb back up the stairs and resume randomly driving around.
Take the SUV and trap Leon between a wall. Once he is stuck, get out and attack Leon. Be careful however, as Leon is able to flip the SUV if he crashes head-on in to it.
Firearms can make the battle somewhat easier, as they allow Chuck to attack Leon while he is moving.
- Dodge roll
A more difficult strategy to attack Leon with ranged weapons is to use the dodge roll maneuver, unlocked through leveling, and dodge his attack. Fire when he is charging at Chuck or traveling away from Chuck.
- Shooting from save door
An easier way to attack Leon with ranged weapons is to hide next to the save door in the middle of the park, and shoot Leon, as he only drives along in relatively straight paths.
- Sniper Rifle
An even easier way to beat Leon is to take two Sniper Rifle from the High-Noon Shooting Range in the Palisades Mall. Travel to the fountain in the center of the plaza. Leon will drive around, and after a few seconds, he will stop for 6-7 seconds to taunt Chuck, that is when he can be shot; do this 16-17 times and he will die.
- Shotguns and LMG
Enter the battle carrying a few shotguns, or, ideally, a shotgun and anLMG. Stand in front of the railing surrounding the artificial streams, and wait for Leon to charge. When he approaches, jump over the railing and into the fountain. Leon will get stuck for several seconds, allowing Chuck to shoot him a couple of times. Repeat this process until he is dead.
Make two Flamethrowers with a gasoline canister and a water gun. Wait beside the railing for Leon. When he comes charging at Chuck, quickly jump over the railing into the small pond. If performed properly, Leon will crash into the railing, or stop to taunt Chuck. Either way, this gives Chuck time to attack Leon. Use the Flamethrower and shoot him from inside the pond.
Sometimes Leon will get stuck between the trees and the railing, not being able to move, allowing Chuck to shoot him easily.
- Plate Launcher
Construct a Plate Launcher. The easiest place to create this combo weapon is in the South Plaza. The Plate Launcher inflicts significant damage against Leon, and will cut through any zombies that might block Chuck's shots up to a certain distance. If Chuck is conservative with his ammunition, Chuck can finish Leon off using only a single Plate Launcher.
Use the Flamethrower strategy above. Another good place to use the Plate Launcher against Leon is the lamp-post plinth north of the Fortune City Hotel entrance; Leon will pass by this plinth with every Fortune Park pass through, and stop near the stairs to taunt Chuck. Chuck can usually get two shots in before Leon takes off to do another lap. If Chuck stands on the second tier of the plinth, an inch or so from the edge, the zombies will not be able to interfere with the fight between Chuck and Leon.