This is not a guide, as you can see that ACBL80 did quite a fine job with the walkthrough himself. I just wanted to say that I purchased all 14 cards, but I bought a couple of the last few cards out of order, and the tracker locked at 92%. AFTER I BEAT THE GAME, AFTER.... get your 1,000 deaths and beat arena 3 out of the way. Should only have smash 100 and smash 150 barrel achievements left. Delete your save from EVERYWHERE. You have to go to saves on your Xbox (press start on penarium tile and go to manage game: press start on your game save and choose “delete everywhere”. Then start a new game, play arcade to get 1,000 coins. Buy first two cards and pop. The achievement unlocked and I didn’t even have to beat the 2nd arena (but I did) you do not have to buy all 14 again, just a few and it works. Hope this helps anyone that got glitches like I did. Easy enough to fix.