Burger King's Australia branch, Hungry Jack's (named after the Pillsbury pancake brand because "Burger King" was already trademarked by another company in Australia), recently introduced a limited-time, spicy-themed "Angry Menu," which features the familiar Angry Whopper (as well as a chicken and veggie version), but also a Chili Choco Sundae.
The new Chili Choco Sundae is a cup of vanilla soft serve topped with a warm chili chocolate fudge sauce for a bit of spice with your sweet. It's visually indistinguishable from a regular Chocolate Sundae so it's entirely possible to mistakenly get one when you ordered the other.
Also on the menu is new Traditional Lemonade, which is bit of an oddball as it doesn't seem very angry at all.
The Angry Menu is a bit easier to implement for Hungry Jack's operationally than here in the US, because Angry Onions, the battered and slightly spicy onions found in the Angry burgers is a regular side on the menu.