18 Oct 2011 26 Oct 2011
At the end of the campaign mode, you should be level 3 with something like 11 000xp. The only way to gain level 10 is to fight over and over to obtain the 150 000xp needed to reach level 10 and to unlock all the available power-ups (last one is Stronger Super Attack!).
Fighting someone with a higher level than you in an online or offline match is a good way to earn fast XP and if you're playing Ranked match you'll climb the leaderboard at the same time!
You can also replay the campaign mode to earn another 7 000xp or you can choose the rematch option to fight a defeated ennemy from the campaign mode like the final boss (this is what I did)!
Choose your favorite way to earn XP and enjoy the game at the same time!