"MMP puts the parties first, the country second and the people last."
He said that on election day, people voted for a candidate or party for their policies, but it all changed after election night.
"Policies are watered down and another party who you didn't vote for and whose candidates, policies and philosophies you disliked, gets incorporated into your party of choice."
Mr Kane said New Zealand should be looking at systems like Switzerland's legislative referendums, single transferable vote (STV) or tweaking MMP to reduce the number of list MPs. He said list MPs without a constituency mandate should not be able to stand for Prime Minister and favoured the option in which list MPs needed a 25 per cent voter threshold.
Other candidates so far for the Tauranga seat are incumbent Simon Bridges, Labour's Jan Tinetti and the Greens' Emma-Leigh Hodge, with NZ First List MP Clayton Mitchell expected to win his party's nomination for the electorate.
Rusty Kane's election history
2013: Bay of Plenty Regional Council (lost)
2014: Independent for Tauranga in General Election (lost)
2016: Bay of Plenty Regional Council (lost)