To literally no one's surprise, Mario + Rabbids: Kingdom Battle has been officially revealed by Ubisoft at their E3 2017 Press Conference. Now, if you have been following the gaming scenes (generally) you won't be surprised about this crossover – it has been leaked and referenced to, with nearly rapid-fire leaks coming within this past month. Even an hour before, Walmart's listing for the game cropped up on their website.

Miyamoto and Yves Guillemot took the stage together to formally announce the crossover, and showing a life-sized replica of a hand-canon weapon from the game. According to the both of them, the crossover had blossomed out of a friendship and rivalry that has developed between Nintendo and Ubisoft for years. However, they "tried to make a Mario game that has never been made before" and have been working on it for over three years.

The teaser trailer, which features the Rabbids and Mario crossover is just what you would expect – Rabbids messing around with a ? block.

The actual game's trailer is a bit more in-depth, showing off more strategic, tactical adventure exclusively for Nintendo Switch. Exploring across a 3D world that has clear influences from both worlds, Mario and a collection of Rabbids use turn-based gameplay with cover elements – somewhat reminiscent of the XCOM series. The enemies are Rabbids that have inexplicably turned evil.

Along with traditional elements, you see Mario-inspired elements of tactical gameplay. This includes pipes and Super effects.

As noted above, Mario + Rabbids: Kingdom Battle will release exclusively on Nintendo Switch on August 29, 2017. Check out the teaser and the gameplay trailer below: