Shock as team's game-changing gamble 'breaks every rule' in a supersized Sunday night Room Reveal

Prepare for the ultimate showdown as five Block teams deliver five very different spaces for the first time this season.

A sneak peek, which you can watch above, teases that come Sunday night's Room Reveals, these showstopping rumpus rooms "break every rule" in the competition – by going rogue with interpretation!

Stream every episode ever of The Block for free on 9Now.

A home cinema, a games room, wellness retreat, breakout zone and kids play room – which team has made the right decision, and who will take home the thousands?

"I am besotted," says an almost speechless Darren Palmer.

"This is the room to nail and they've nailed it," declared Marty Fox.

DAN VS DANI EXCLUSIVE: 'Worst room yet': Couple roast one team's living room and point toward one feature for 'ruining it' all

But one room has left the judges divided. While Darren thinks one room is "bloody brilliant", Marty worries.

"It's so on trend that I think it will be out of trend as quickly as it's come in," he harshly warns one team.

Meanwhile, Britt and Taz take their biggest gamble this season.

"The Block is all about taking risks and you guys have rolled the dice this week," says Scotty.

WATCH: Shelley Craft scolds contestant – and not for the reason you might think

But will it be jackpot or bust? Shaynna walks in their space and sees the last thing she was ever "expecting".

Tune in to find out who wins on on Sunday night at 7pm!

Want more Block? Dan and Dani roast last week's living and dining rooms in the exclusive video below:

The Block airs Sundays at 7pm and continues Monday to Wednesday at 7:30pm and Sunday at 7:00pm on Channel 9 and 9Now.

Stream every episode ever of The Block for free on 9Now.

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