XCOM creative director Jake Solomon says that seeing Ubisoft and Nintendo reveal Mario + Rabbids Kingdom Battle was one of the biggest surprises of his career.

"Just like everyone else, my jaw dropped a little bit when I heard the phrase, ‘As you see, Luigi has taken half-cover.’ What world am I in right now? I couldn’t believe it," Soloman told Venturebeat.

"But I realised that this is finally how I can introduce XCOM to my daughters. I can finally play something like XCOM with my daughters, introduce the basic concepts.

"Then, when they’re old enough, maybe we can move on to XCOM together. That was really cool to see."

Soloman said it was neat to see mechanics from tactical games hit the mainstream.

"Hopefully, they’ll come up with something awesome," he said.

"I liked the jumping mechanic.

"They’ll come up with some cool twists, and I’ll definitely steal them," he added, laughing.

"I never thought I’d see Mario taking cover with a gun."

Solomon's studio, Firaxis, is currently working on XCOM 2: War of the Chosen.