Unfamiliarity did not prove Novak Djokovic's undoing as he started the defence of his Australian Open title with a classy straight-sets win over teenager Chung Hyeon, while Roger Federer was equally emphatic versus Nikoloz Basilashvili.
World number one Djokovic won a fifth Australian Open as part of a sensational 2015 season and he put Chung to the sword in a 6-3 6-2 6-4 victory in the first meeting between the pair.
Federer is aiming for an 18th grand slam title and was ruthless in a 6-2 6-1 6-2 battering of Basilashvili, while Tomas Berdych and Jo-Wilfried Tsonga were first-round winners.
However, 17th-seed Benoit Paire was an early casualty and his actions on and off court in defeat to Noah Rubin came under scrutiny.
Djokovic was tested early in his contest against Chung on Rod Laver having failed to consolidate a break, but ultimately the 10-time grand slam champion showed his superiority.
Federer last won the tournament in 2010 and was beaten by Andreas Seppi in round three last year. The 34-year-old oozed class against Basilashvili, though, and never looked in danger.
Berdych started slowly but ultimately won in straight sets against Yuki Bhambri, while Tsonga - a finalist in 2008 - needed four sets against Marcos Baghdatis.
SEEDS SAYING GOODBYE
It was a day of few shocks in the men's draw, but Paire was ousted by former Wimbledon boys champion Rubin in three sets.
Paire's antics on court drew attention when he smashed a racquet in frustration, while his post-match appraisal of world number 328 Rubin as "not a very good player" also made headlines.
Ivo Karlovic (22) was the only other seeded casualty. The big-serving Croat was two sets down to Federico Delbonis before succumbing to a knee injury.
Federer's victory helped him get past the first round at the Australian Open for the 17th consecutive year.
Such was Djokovic's dominance, Chung managed just six points on the Serb's serve in the second and third sets.
Berdych fired down 13 aces and hit an impressive 35 winners en route to his victory over Bhambri.
Nick Kyrgios has his detractors, but he converted 50 per cent of his break-point opportunities in a straight-sets win over Pablo Carreno Busta, surrendering serve just once.
TWEETS OF THE DAY
"Just wanted to thank everyone on the support and cannot wait to battle again on Wednesday! Aussie '16!!" - Rubin is thrilled with the support he received against Paire.
"Great to be back on Hisense. Crowd was awesome." Kyrgios loves being at his home tournament.
"Sorry guys. I tried to play today but the pain in my knee was very sharp from the beginning. After 2 sets I just couldn't take it anymore." - Karlovic expressed his disappointment at retiring hurt.
THEY SAID WHAT?
"Yes, he's not a very good player. I was worse than him today." - Paire issues a scathing assessment of Rubin.
"The Aussie summer isn't quite the same without Thanasi. We've always been there for each other. I'm getting pretty deep out here!" - Kyrgios salutes best friend Thanasi Kokkinakis, who watched on from the stands having withdrawn from the tournament through injury.
"Having to play somebody for the first time, especially somebody that is as young as him, he's only 19, it can be tricky." - Champion Djokovic is relieved to come through the unknown against Chung.
"It definitely gives me a bit of a lift in confidence because this year I haven't been able to play properly yet," Federer was delighted to find his groove against Basilashvili.
Andy Murray is a four-time losing finalist in Melbourne, including 12 months ago, and the Briton starts his attempt to go one better against the tricky Alexander Zverev.
Rafael Nadal failed to win a slam for the first time since 2004 last season and the Spaniard faces compatriot Fernando Verdasco first up as he bids for a second Australian Open triumph.
Novak Djokovic returns for round-two action on Wednesday against Quentin Halys, while Federer is up against Alexandr Dolgopolov.
Novak Djokovic (1) beat Chung Hyeon 6-3 6-2 6-4
Roger Federer (3) beat Nikoloz Basilashvili 6-2 6-1 6-2
Tomas Berdych (6) beat Yuki Bhambri 7-5 6-1 6-2
Kei Nishikori (7) beat Philipp Kohlschreiber 6-4 6-3 6-3
Jo-Wilfried Tsonga (9) beat Marcos Baghdatis 6-4 4-6 6-4 6-2
Marin Cilic (12) beat Thiemo de Bakker 6-7 (4-7) 7-5 6-2 6-4
Gilles Simon (14) beat Vasek Pospisil 6-7 (4-7) 6-3 6-2 6-4
David Goffin (15) beat Sergiy Stakhovsky 3-6 6-3 6-4 6-4
Noah Rubin beat Benoit Paire (17) 7-6 (7-4) 7-6 (8-6) 7-6 (7-5)
Dominic Thiem (19) beat Leonardo Mayer 6-2 7-6 (8-6) 4-6 7-6 (7-0)
Federico Delbonis beat Ivo Karlovic (22) 7-6 (7-4) 6-4 2-1 (retired)
Roberto Bautista Agut (24) beat Martin Klizan 6-2 6-3 4-6 2-6 6-2
Guillermo Garcia-Lopez (26) 6-4 6-4 6-4 beat Paul-Henri Mathieu
Grigor Dimitrov (27) beat Paolo Lorenzi 6-3 7-6 (10-8) 6-3
Andreas Seppi (28) beat Teymuraz Gabashvili 3-6 7-6 (7-4) 6-4 7-6 (12-10)
Nick Kyrgios (29) beat Pablo Carreno Busta 6-2 7-5 6-2
Austin Krajicek beat Wu Di 6-4 6-1 6-3
Alexandr Dolgopolov beat 6-1 3-6 6-4 6-2
Nicolas Almagro beat Julien Benneteau 6-3 6-7 (5-7) 6-3 7-6 (7-1)
Damir Dzumhur beat 1-6 7-6 (7-4) 4-6 6-3 6-1
Renzo Olivo beat Jiri Vesely 7-6 (10-8) 2-6 1-6 6-4 6-4
Albert Ramos-Vinolas beat Borna Coric 6-2 6-2 6-3
Evgeny Donskoy beat 6-4 3-6 6-1 6-4
Mirza Basic beat Robin Haase 7-6 (7-4) 6-4 6-4
Denis Kudla beat Filip Krajinovic 6-2 6-1 (retired)
Daniel Brands beat Victor Estrella Burgos 6-4 7-6 (7-1) 4-6 6-1
Dusan Lajovic beat Sam Querrey 6-7 (5-7) 4-6 6-4 6-2 (retired)
Pierre-Hugues Herbert beat Pablo Andujar 5-7 6-4 7-6 (7-5) 6-2
Omar Jasika beat Illya Marchenko 6-4 3-6 6-0 6-4
Pablo Cuevas beat Yoshihito Nishioka 7-6 (7-5) 6-1 6-4
Quentin Halys beat Ivan Dodig 6-4 6-7 (4-7) 6-4 7-5
Marco Trungelliti beat Jozef Kovalik 6-4 7-6 (7-1) 7-5