The game Shindo Life offers a quick pumping of the 9-tailed Pokemon up to stage 5. To do this, you can complete missions or use the «foam» skill to use the «stump» skill on the Q key. To make the process more interesting, I recommend turning on music or calling a friend to play together. Don't forget to check your computer from time to time to be one step ahead and reach new heights in the game. Good luck! ;)