Join Brock’s Rumble Club through the game menu or by visiting Brock just inside the main door of Skylanders Academy (see Figure 11.1). You can play the arenas on easy, medium, or hard difficulty, but you’ll have to make it through each level before you can move onto the next. The challenges become trickier and longer the further you progress. Food will drop from defeated enemies every so often, but leave it on the arena floor until you really need a health boost. The Arena Challenges are a great way to earn gold quickly for upgrades, to practice new attack moves, and to level up your Skylanders.