The mission becomes available after completing The Joys of Civilization in the RDR2 Story Mode.
The first part is only available between 6 AM and 6 PM. The second part is only available during a thunderstorm.
A Bright Bouncing Boy Mission Walkthrough
A Bright Bouncing Boy - Part I
Marko Dragic demonstrates his latest invention, a remotely controlled boat, to a crowd of potential investors and one buffoon in Saint Denis.
This stranger, Marko Dragic, is found in the park in the southwest of Saint Denis during the day. After the cutscene, you gain control of a boat on the lake.
Using broadly the same commands as when riding a horse, your goal is to destroy stationary warships while avoiding or blowing up the mines on the way; the latter hazards will home in on you if you get close, so maintain a safe distance at all times.
Return the boat to the dock when you're done, then repeat the same task - this time on moving sailboats. Wait in your starting position to stay clear of the mines and let the sailboats come to you, taking their speed into account when you fire.
A Bright Bouncing Boy - Part II
Dragic needs help placing conductors in the electrical fields around his laboratory so he can power his greatest invention to date.
Only available if there is an active thunderstorm. Visit Marko Dragic at Doverhill between 10pm and 5am, in the far northeast corner of the world map. He needs you to place lightning conductors in electrostatic fields. To find them, you have a detector that you can aim by holding L2/LT: the coil flashes more rapidly as you approach an appropriate position.
Head to the highlighted area right in front of your starting point and use the device to locate the first field. Press Triangle/Y to place a conductor. Repeat this with the next two: the second is up the hill directly northwest of where you placed the first detector, and the third then lies to the east. Return to the lab once all three conductors are in position.
Next, you need to climb the tower opposite the lab entrance using the long ladder by the central pillar. Inspect the switching array and operate the switches as follows: first the two side switches in either order, and then the middle switch. Return to the lab when you're done.
A Bright Bouncing Boy - Part III
On a subsequent visit to Dragic's lab, at least 48 in-game hours later, you will have a chance to acquire the electric lantern and find out what happened to Marko in the meantime.
This leads to the appearance of a Robot on a mountain-top. The electric lantern acquired will glow orange when aligned in the direction of the robot.
Travel to the north-west of The Grizzlies in the mountains near Colter to find the robot responsible for killing the inventor.
A Bright Bouncing Boy: Mission Info
- Rewards Unlocks the "Artificial Intelligence" Trophy / Achievement.
- Featuring RC Boat