The Fianna Fáil leader has said there a lot of people who voted Fine Gael in the last election who have told him they will vote for Fianna Fáil on Saturday.
Speaking in Tralee, Micheál Martin said people were "tired of the absence of delivery on housing and health."
Commenting on the possible inclusion of the Green Party in any new Government he said that there were "a lot of common policies" which he said "we could together implement."
Mr Martin said "no one party can dictate that it's entire policy gets implemented in a programme for government", but he added there was a need for "freshness and change."
He said new initiatives could create alternative and new income streams which could help protect the environment.
The Fianna Fáil leader also said he would work to have the voting age lowered to 16, if elected to government.
Mr Martin said it would encourage more young people to be "engaged in politics".
He said young people were worried about their future and deserve a voice.
Lowering the voting age would improve their engagement, he said.
Micheál Martin said Fine Gael was "flailing about the place" with their election campaign.
He said the Government party and its "negative" campaigning was "not working". He said this had resulted in "desperate type measures".
He said his party had delivered doable and achievable policies and he would work to deliver on them.
Meanwhile, speaking at Fianna Fáil's election headquarters, Michael McGrath accused Fine Gael of reverting to negative tactics in the last days of this campaign.
This was, he said, a sign of desperation and he then invoked the words of Michelle Obama saying; "when they go low we go high."
Mr McGrath repeatedly tried to emphasise that there were major differences between Fianna Fáil and Fine Gael in the areas of tax, the health service, education, disability services and housing.
He also said that Sinn Féin's tax policies would boomerang back on the people they were intended to help.
Additional reporting by Mícheál Lehane
