Elsewhere Alasdair Strokosch, Scott Lawson, Max Evans and Alastair Kellock return.
"This weekend we have to put together an 80-minute performance and build on the positive parts of our games that we showed in the last 30 minutes against South Africa and the second half against New Zealand," said Robinson.
"International rugby is about pressure and it's important that you convert your pressure into points and when you are under pressure that you are able to absorb it, as opposed to conceding points as cheaply as we have done.
"We will not be among the top eight seeds for the 2015 World Cup draw, so this weekend I'm looking at giving a number of players an opportunity to put their hand up for selection for next year."
Uncapped lock Grant Gilchrist could make his Test debut if called into action, as could 20-year-old Bath fly-half Tom Heathcote, who has pledged his allegiance north of the English border.
Euan Murray is the only former Lion in the side after Mike Blair and Ross Ford dropped out of the squad.
But it still contains several of their rising stars who have been tipped for Lions honours, with Stuart Hogg, Greig Laidlaw, Richie Gray and Dave Denton all starting.
Scotland have impressed at times this autumn but have still crashed to defeats to New Zealand and South Africa.
They will be aiming to make a statement against the south sea islanders in Pittodrie.
Scotland (v Tonga, Pittodrie, Saturday, 3pm): Stuart Hogg, Sean Lamont, Max Evans, Matt Scott, Tim Visser, Greig Laidlaw, Henry Pyrgos, Ryan Grant, Scott Lawson, Euan Murray, Richie Gray, Alastair Kellock, Alasdair Strokosch, Kelly Brown (capt), David Denton
Replacement: Dougie Hall, Kyle Traynor, Geoff Cross, Grant Gilchrist, John Barclay, Rory Lawson, Tom Heathcote, Nick De Luca.
