Ahead of Monday's clash with Netherlands, the Juventus man is optimistic about their chances while team-mate Eduardo Vargas is keen to bag nine points out of nine
After beating Australia 3-1 in their opener, Chile pressed the life out of Spain at the Maracana on Wednesday, with first-half goals from Eduardo Vargas and Charles Aranguiz earning them a 2-0 win which eliminated the defending champions.
The Juventus midfielder is optimistic regarding the South American side's hopes of causing an upset by winning the Brazil tournament but knows they have to keep their high level of performances they have shown so far.
"If we play the same way all tournament as we did against Spain, we can make it all the way to final," Vidal told reporters.
"But of course you have to prove that you can really live up to your own expectations."
The South Americans were many people's dark horses for the World Cup and have not disappointed, with a maximum return of six points to show from two high-intensity performances thus far, the same as Monday's opponents Netherlands.
With the group winner likely to avoid hosts Brazil in the second round, Chile attacker Eduardo Vargas is desperate not only to keep the momentum going but to dodge a clash with a side that have knocked them out of three World Cup finals.
"We are very happy for having eliminated a world power like Spain," Vargas said. "Since we arrived in Brazil we have been wanting to win things.
"Netherlands are another power and we have the idea of doing the same thing as we did in the last match. We want to qualify in first place."