Street Power Soccer

You do not get any progress towards this in the tutorial-level, so don't bother trying that.

The way I grind this achievement, is that I play the first Berlin-level on easy difficulty up until the last section, there is usually 170 to 180 seconds on the clock, so the remaining time is maximized when you do this in the last part of the level.

Then I set up my Xbox 360 Horipad Ex 2 turbo-controller, I stream the gameplay through the Xbox app to PC, so I'm able to use this controller through streaming, it is not compatible with Xbox One or Series X, but it can be used by streaming to your PC. So you'll need some turbo controller that connects to your PC.

I aim the shot to the ground and to the stone wall, I set up the turbo rapid fire on -button to keep shooting the ball to the wall.

The way the timer works in this game, it stops momentarily when you take a shot. But since my turbo speed is on the highest possible setting, the game thinks I shoot the ball immediately after the last shot, so I'm able to rack around 14 shots every second of in-game time. So 170 seconds X 14 shots every in-game second is around 2380 per game. Then the time runs out and I set it up again. It doesn't always work flawlessly, but I'm usually able to rack up little over 2000 shots per game. One run like this takes around 1,5 hours.

Note:
- The turbo controller does not work for me when I try to stream with Xbox Series X so I grind the achievement on Xbox One.
- This still takes a long time, at least 70 hours of constant shooting. I do not recommend grinding this manually by mashing the -button. You will go crazy and the publisher most likely won't cover your mental health bills.

There's a reason this game has only been completed by 16 people at the time of making this solution, and this achievement is that reason. This achievement is by far the longest and most painful grind in the entire game and quite possibly one of the worst grinds of any achievement in any game ever made. You're looking at at least 80-100 hours of button mashing for this achievement. There aren't really any tricks to make this go faster, but I'll give my strategy based on my experience with trying a few different things.

(The other guide already posted is very helpful, however I'd like to give my solution for those who don't have a turbo controller and don't plan to go through all the hoops just for this one achievement)

For each kick, it takes around 2-3 seconds in real time as long as you're continuously mashing the B button. When you kick the ball in trick shot mode, the timer stops momentarily, so button mashing B allows you to get as many kicks as possible in each round. For the fewest number of overall games, you'll want to make sure to just keep hammering away at your B button as quickly as possible.

For the easiest setup, I recommend playing the "Tokyo Night" level. You can unlock this by completing the first few trick shot levels.

For the Tokyo Night setup, you'll also want to adjust the "difficulty" to easy. This will have you start the first stage with 135 seconds. Aim the ball all the way to the left at the the blue truck as low as possible. I found this to be the quickest way to be able to hit as many balls as possible without taking as long in between as it would if you just kick straight. Once you get it lined up, just button mash away until the timer runs out. I would recommend doing something else in the meantime, such as doing something on your phone or computer because you'll drive yourself mad watching the number of kicks slowly accumulate.

Using this method, I get about 600-700 kicks per round if I'm continuously mashing the B button. This usually takes around 35-45 minutes per run. Sadly, I haven't found any method to make this go any quicker, so this setup is the best recommendation I can personally give. The good news is that the achievement tracker goes up as you go, so you'll always know how far you are from 100,000. There is no way in-game to see your total lifetime kicks, so I would suggest using the achievment tracker to monitor your progress.

Best of luck, this grind is awful and there's really no way around it. This will likely take you weeks/months to complete unless you devote all your free time to this lone achievement. For your own sanity, I would recommend doing 1-3 rounds per day to avoid getting too burnt out on it. It took me several months to rack up 100,000 kicks personally and I was spending at least 2-4 hours each week on this achievement alone.

Once you hit 100,000 kicks, enjoy that sweet rare achievement sound and take pride knowing you just finished one of the most grindy and painful achievements of all-time