The win has extended their winning streak to nine games and leaves them sitting two points ahead of second place with six games remaining in the season.

While the final scoreline was flattering, it was a game of two halves for the Kangaroos who, despite going into half-time leading 22-18, had struggled to fire.

Despite a first-half double from centre Bryan Cronan and tries from Brent Crisp and Jordan Macey, defensive errors cost the kangaroos dearly. Two of the Bulls' tries followed fumbles from the restart, much to the frustration of coach Aaron Gorrell.

"To be honest, I don't think we've played that badly since round one. We were pretty disappointing in the first half," Gorrell said.

"We just took them a bit lightly in that first half and they've got some quality players that burnt us."

Starting as a back-and-forth affair, the game soon turned scrappy, with the tension boiling over shortly before the half-time break.

The interval came at the right time for the Kangaroos who returned determined, posting 16 unanswered points within 12 minutes.

"In the second half … they scored a couple of quick tries and a few calls went their way and it just sort of snowballed from there," Gorrell said.

Cronan completed his hat-trick in stunning fashion as he collected the ball inside, capitalising on a Bulls error to run 80 metres for a 42-18 lead.

Despite the loss the Bulls still sit in fourth, a spot co-coach David Howell admits is the bare minimum the club expected this season.

"We want to be in the top four, that's the be-all and end-all. We want to be in semi-finals football. We're the only ones that can do that, so it's up to us to … get the two points each week. We can't control what other teams are doing, we've just got to get out there and win," he said.

Roos face Goulburn next round and Gorrell hoped the team would be able to ignore the complacency that's been creeping into their game.

"I think that's what we had in the first half, a bit of complacency … we've got some good players but we just need to learn to play to a game plan and keep it simple and play to our strengths," he said.

"We fall in the patches where we think we know better and we make up stuff on the run, so if we can stay to a script and play what's in front of us I think we'll be tough to beat."