The 42-year-old wants his side to seize the initiative on Wednesday night after the defeat to Brazil in their World Cup opener left them with ground to make up on Mexico
The Europeans were beaten 3-1 by Brazil in their World Cup opener on Thursday but were unfortunate to concede a harsh penalty and have a goal of their own disallowed, having troubled the Selecao throughout the 90 minutes.
Cameroon are next up in Group A at the Arena Amazon in Manaus on Wednesday evening, with both sides knowing that defeat could put them out of the tournament.
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"Against Cameroon it will be a completely different game," he reasoned to reporters. "It was difficult to attack Brazil - we had to look through counterattacks - but against Cameroon we will have greater ball possession and seek dominance.
"The first goal will be an advantage - it would be good to go in to half-time with a positive result. We know all about Cameroon, we analysed them like Brazil and will set our tactics accordingly.
"Our goal is to take the three points and this is a game with growing importance."
The coach also seemed unfazed by the testing conditions in Manaus, remarking that his side have profited from more rest than their rivals.
"I think a rest day is always useful," Kovac explained. "Everyone has recovered."