While in Brazil, I had pizza on at least 4 occassions. Normally, I'd never eat pizza so many times in one week, but the fun flavors and creativity kept it interesting for me.
Ketchup, Mustard, & Mayo
Their pizzas are very light on sauce. Instead, Brazilians prefer to squirt ketchup on top of their pizza slice. When ordering pizza in a restaurant in Brazil, the waiter will also provide a pile of ketchup, mustard, and mayo packets for this reason. I can see how the sweet tomato ketchup and creamy mayo go well on pizza (and confirmed this with a few bites with these condiments), but I didn't get the courage to try the mustard with my slices!
You'll also have the option to order pizza with Catupiry cheese. This Brazilian cheese is very creamy (almost like cream-cheese) with a delicious smoked flavor. If you order a four cheese pizza in Brazil, I can almost guarantee that Catupiry will be one of the cheeses used.
It's also quite common to have sweet "Dulce" pizzas on the menu. The pizza below has pineapple, peaches, figs, maraschino cherries, bananas, and cinnamon. Unfortunately it also came with ham, as my dear host family forgot to specify meatless when ordering. It's not easy being vegetarian in Brazil!