You all know the Twlight House in Mario Kart in Battle Mode right Here's a hard trick I've mastered(Always worked when i battle friends and gave me a 21 win-3 loss record) is the double baloon loss in this area. There are squares at the edges right Wait near them with a red shell and when an enemy goes by to pick up the box in the middle of the small square, hit him with the shell. Thats minus 1 baloon, then when he tumbles after that hit, he falls! He's sure to be eliminated if he only had 2 baloons, which most players keep at a time! It's hard cause you have to master your timing. You have to hit him/her right when she/he's making the turn to the item box. NOTE: THIS WON'T WORK IF YOUR ENEMY DOES NOT LIKE TO GO THERE, LIKE ME, BECAUSE IT'S HARD TO TURN YOUR KART AFTER GETTING THE BOX. BUT IF HE MASTERED IT, THEN HE'D GO THERE AND YOU CAN USE THIS STRATEGY.