Germany coach Rudi Voller praised the goalscoring efforts of his team after their 8-0 demolition of Saudi Arabia.
Striker Miroslav Klose headed home a hat-trick and Michael Ballack, Carsten Jancker, Thomas Linke, Thomas Bierhoff and Bernd Schneider were also on target as Germany recorded their biggest ever World Cup win.
But Voller warned his players against complacency with tough Group E matches against the Republic of Ireland and Cameroon to come.
Biggest World Cup wins
Hungary 10-1 El S'dor
Yugolslavia 9-0 Zaire
Hungary 9-0 S Korea
Germany 8-0 S Arabia
Sweden 8-0 Cuba
Uruguay 8-0 Bolivia
"It's a fantastic start and it's and great to win by that margin," said Voller.
"Klose scored a hat-trick and had one assist and, as a former forward myself, I like my
players scoring lots of goals.
"But we have to keep our feet on the ground because we know our opponent wasn't that strong today."
Voller, who had no concerns about the result after kick-off, also paid particular tribute to the defensive efforts of Liverpool midfielder Dietmar Hamann.
"From word go we were very committed and did not leave a trace of doubt as to who was going to leave the pitch as winners," he added.
"Hamann was also very good as a midfield destroyer. He nipped any Saudi resistance in the bud.
"The team was amazingly focused, everyone was motivated and we overcame Saudi Arabia with our combination and technique."
The 8-0 win is the fourth biggest in World Cup history, just behind demolition jobs from Hungary - twice - and Yugoslavia.
It surpasses West Germany's 6-0 score against Mexico at the Argentina World Cup of 1978.
But, despite the margin of victory, Voller expects Mick McCarthy's Irish to provide a much sterner test in Ibaraki on Wednesday.
"We have to make sure we prepare well for the next match," he said.
Hat-trick hero Klose set aside personal glory to agree with his coach.
"It's feels brilliant to have got three goals in a World Cup match, but I watched the Cameroon-Ireland game earlier and I can tell you that it will be a different ball game against the Irish," Klose conceded.
"It's always been a dream to play a decisive role at a major tournament and I thank my team-mates for making the goals possible.
"I'm glad I've proved to everyone that I can handle the pressure and score goals at this level not just in the Bundesliga."
Goalkeeper Oliver Kahn said the win gave his team an important lift.
"The ball ran well for us and we scored some great goals.
"We are not going to make the mistake of saying we can now beat any team, but it was important for our confidence."