In the summer of 1989, two great titans of teen pop culture combined. Veteran publisher Konami, then famous for titles such as Contra, Gradius and Castlevania, won the licence to produce games based on the Teenage Mutant Ninja Turtles, the global stars of a hit cartoon series and action figure line. That year saw the first two products of this fertile relationship: an entertaining action-platformer on the Nintendo Entertainment System, and a four-player arcade beat-'em-up that would go on to become one of the highest grossing coin-ops of 1990. They were bright, ridiculous and brimming with TMNT characters, story arcs and scenarios – and they were just the beginning of a series of tie-ins now collected together in this lovingly produced compilation. There are 11 games here, taking us from those late-80s originals on through the NES beat-'em-up sequels, the Genesis exclusive Teenage Mutant Ninja Turtles: The Hyperstone Heist, fighting game Tournament Fighters (three versions are included) and the three excellent Game Boy platformers. Common elements stand out to fans: the way Foot Clan ninjas would burst into the scene by smashing through windows or screeching up in cars, the robots with electrified whips, the interactive scenery (gushing fire hydrants, spinning road signs), the RSI-inducing boss battles, the pizza.

When MGA Entertainment, the world's largest private toy company, premiered its newest kids' show about a teen-girl team of super spies, it skipped Saturday morning TV and staged a splashy premiere on Netflix -- replete with a matching toy line, a few dozen dolls and play sets like the "lip balm lab activity kit." And Netflix, the world's largest streaming service, was more than happy to fold the show, "Project Mc2," into its exploding empire of kids' entertainment. Much of the 5 billion Netflix is spending this year on movies and TV shows will be spent on fare for the playground set. The big-business battle for kids' distracted attention spans has never been more competitive -- or eye-poppingly lucrative -- and Netflix has aggressively angled to use its data-driven insights to make programs kids don't want to turn off. About half of Netflix's 75 million members regularly watch kids' movies or TV shows, executives say, but the potential for long-term profits runs much deeper. If the site is able to win over viewers when they're young, executives said, they may be able to secure their loyalty for life.