G-Bike is a mini-game within Final Fantasy 7. It is found in the Wonder Square of the Golden Saucer area, and can be used to win GP, which can then be used to compete in the Battle Square. It is completely skill-based, not depending on any stats or items you’ve accumulated up to that point (except that it costs 200 Gil to play). It may or may not be a faster way to earn GP than chocobo racing–I haven’t put much time into that yet, but at least you don’t have to capture a motorcycle in the wild, then breed it until you get one worthy of racing. I hear that chocobo racing also has some other advantages in terms of loot, so if you just want to get through the game in the optimum way, that might be your best bet. Check out the aforelinked strategy guide.
I define “winning” as getting 10,000 points, thus getting 10 GP (anything less and you’ll only get 0 or 2 GP). As the intro mentions, you lose points when the truck is “attacked”. Every time a biker bumps the truck, you lose about 100 points, and they can do it several times in a few seconds. Also, when a biker is destroyed in front of the truck, and the truck runs it over, you lose about 1000 points. You gain points by destroying bikers, 500 each.
Spend a few rounds practicing your attacks, without worrying about losing. If the 200 Gil charge is a problem, go outside and kill stuff or master and sell some All materia. If it were cheap, they’d call it the Plastic Saucer. As the intro mentions, you’ve got left and right slash. You also can bump the other bikers. They can’t hurt you. It seems to be possible destroy the bikers by bumping them, especially from the front, but this is hard to do. The main uses of the bump are 1) pushing them away from the truck, and 2) getting in close for a slash.
The slash takes some practice. Cloud takes a second or so to wind up for the slash, so you should take a few swings to get used to that. Then practice slashing the bikers at the right height. Which way you’re leaning affects the height of your slash. Easiest is when they’re right beside you and you’re not leaning at all. One technique is to get beside and slightly ahead of a biker, then move backward as you slash them. Another is the diving slash: moving horizontally or diagonally toward a biker while slashing. Bumping them and then slashing works too. The important thing is to get the hang of where they need to be for you to slash them.
It might be tempting to play defensively, since you lose points when the truck is hit. But if you keep the truck from being hit without killing any bikers, you’ll still have zero points. Furthermore, when you kill bikers, the game will spawn more of them (up to 3), so the faster you can kill them, the more points you can potentially earn.
When you’re done practicing, try this mental trick. Name each biker you attack after the score he’s going to give you, rounded down to the nearest 500. Mentally say his name as you attack. (Slash.) 500. (Slash.) 1000. (Truck gets hit.) (Slash) 1000 again. (Slash. Slash.) 2000. (Slash–miss!) Come back here, 2500! (Slash.) 2500… After a few rounds, you’ll get a feel for how fast your score needs to advance in order to make the 10,000 point goal.
The orange bikers seem to be more aggressive in going after the truck, but the orange and red bikers are both worth the same number of points (500). When there are no bikers on the screen, the best place to be is a length or so behind the truck. It’s possible to control the road, preventing the bikers from passing you for a while, but then you don’t get to kill them. Try to kill them before they surround the truck. If they do get near the truck (and you don’t already have a shot), wedge yourself between the truck and them, and then slash them.
The worst place a biker can be is right in front of the truck. They repeatedly do damage (lost points) when the truck bumps into them, and even more if you kill them and the truck runs them over. Try to bump them out of the path of the truck before slashing them, if possible. Don’t waste too much effort on it, though. It may be worth losing some points to kill them quickly, so you can move on to killing the next set of bikers.
Once you reach the required 10,000 points, it again becomes tempting to play defensively. This doesn’t seem to work, as it’s pretty hard to keep the bikers away from the truck. Just keep the mental count and go for the next level of of scorage. When you reach 10,000, shoot for 11,000 instead, and 12,000 when you reach that, etc.
When you learn how to win, next you need to know how many times you need to win to get the required GP. My goal was to have enough GP to play in the Battle Square for long enough get Omnislash and W-Summon, so I played G-Bike until I had about 250 GP. It sounds very Principal Skinner, but you may be able to keep yourself from getting bored by setting a higher or different goal each round. One round, shoot for 13,000, then 15,000, then take a round to practice your slashing, then try to see if you get more GP if you go over 20,000, etc.