The takeover is due to go live in the UK in October and will also run in eight other countries, including Germany, Mexico and Russia.
The deal, understood to be worth a mid six-figure sum, was brokered by MediaCom and includes a multi-language spy kit on the site, created by Picture Production Company.
SunChaser took over the sales for Miniclip in the UK earlier this year.
Chris Massey at MediaCom said: "Working in partnership with SunChaser we have delivered, via Miniclip, the ideal environment to engage our kids audience with the Johnny English Spy Kit."
Miniclip claims to be the world's largest website dedicated to online games, with more than 65 million players per month.