No one sums up big-money art-fair glamour like Jeff Koons. The pop-art superstar and master of shiny surfaces shows key works from the last two decades here. Expect his Sacred Heart, wrapped in blue foil like a chocolate, and his Lobster, which masquerades as a party balloon.Frieze: Jeff Koons, Gagosian Gallery  Omer Fast's X-rated video Everything That Rises Must Converge is a must-see. It's a bare-all look at the LA porn industry, showing 24 hours in the life of real porn stars. But Fast, who's never one to keep things simple, has interwoven the sex with stories of illegal immigration and dinosaur egg theft.Frieze Focus: Omer Fast, Arratia Beer Gallery  Ken Okiishi's paintballing should be the ultimate splatterfest: a carnival-style shooting gallery, with paint guns aimed at canvases. But instead of visitors having to put down their champagne and get their hands dirty, little remote controlled robots – pet-sized takes on drones, perhaps – will bomb their targets while filming, then mop up their own mess.Frieze Special Project: Ken Okiishi  The theme of this year's Frieze special projects is "play" – and nothing says play like Judy Chicago's Rearrangeable Rainbow Blocks. An early work by the feminist art titan, these supersized building blocks are a prod at macho sculpture. It's as if some toddler giant has left them in the sculpture park for other overgrown kids to experiment with.Frieze Sculpture Park: Judy Chicago  Pilvi Takala's video Drive With Care sees the Finnish artist go undercover in an elite US boarding school. What comes across is a Truman Show kind of existence: a self-contained world that the staff rarely leave, and where the "college moms" (faculty wives) spend their days power-walking the grounds.Frieze Frame and Emdash Award Winner: Pilvi Takala, Carlos Ishikawa Gallery  Whether dancing through galleries naked and doused in paint or working in a glass room in a public park, Lili Reynaud-Dewar is ever the exhibitionist. Her Frieze installation turns an intimate bedroom setting into a public stage. Sitting in a bed gradually soaking herself in ink, she'll be reading from her favourite autobiographies, including that of French author Marguerite Duras.Frieze Special Project: Lili Reynaud-Dewar  The Brazilian artist Rivane Neuenschwander once got a security firm to bug a gallery then tore up the walls and floors until she'd discovered the secret surveillance devices. For Frieze Projects, her version of Battleships continues the mind games, turning the traditional pastime into an interactive wall installation that visitors can rip through to uncover lurking vessels.Frieze Project: Rivane Neuenschwander  If you wanted to make a noise at Frieze's new Masters offshoot, you could scarcely do better than with Matisse. Portraits are the focus of this solo presentation of drawings, paintings and sculptures, which show off his virtuoso technical skills. There's also the rare chance to see his early bronze nude Olga, with her ingeniously twisting form designed to be appreciated from any angle.Frieze Masters: Matisse, Thomas Gibson Fine Art Ltd  In the glittery confines of an art fair it's good to be reminded that culture is about more than cold hard cash. "How can art help people?" is a question that runs deep for Marcus Coates, the eccentric Brit known for his performances dressed as a shaman. A solo show features his standout film and audio work The Trip, created at St John's Hospice, where he offered to realise a dying patient's lifelong dream – and ended up travelling to the Amazon.Frieze: Marcus Coates, Kate MacGarry Gallery  Right outside the Frieze tent is a fitting location for Elmgreen & Dragset's sendup of hierarchy But I'm on the Guestlist Too!. It's an oversized VIP glass door that stands alone like a magic portal to an enchanted land – and has its own real-life bouncer.Frieze Sculpture Park: Elmgreen & Dragset
From a retrospective by art's king of pop, Jeff Koons, to a video laying bare the porn industry, via a collection of Matisse masterpieces, here's what to seek out at Frieze