K'Nex was awesome at the time I had them. In the past, I've built the Rollercoaster, which was pretty memorable.
Currently, I use them to build bird-related toys, feeder holders, and perches for my parakeets. If used correctly, you can wedge the K'Nex pieces between the bars of the cage.
Anyways, seeing this from K'Nex seems pretty interesting I got to say. I would never suspect them to be the ones grabbing the TitianFall licensed IP first (since most of their IP themes are based on kiddy video games, like Mario and Angry Bird). You kinda think that Mega Brands would be behind it, but I guess not.
Titianfall, for the parkour alone is pretty fun for the PC. It is like Brink's parkour 10x!