The character DLC page is just a part of our in-game catalog. Just scroll to Hookbot's page to unlock him. He's free. It's a secret to everybody! Except for people that saw this blog post, the last post, the twitter announcement, or people that just look at his DLC page.
New stuff in this update:
Eruption Mode - The sequel to Avalanche Mode, and just as big. Features all new landscapes based on the Fungus, Ruins, and Lava levels. Eruption abandons secret paths and concentrates on pure survival.
Three All New Unlockable Characters - Gnomey, Aldora, and Hookbot. All new characters have new hats and their own signature grappling hook!
Three New Paid-DLC characters - Jake, Gunny, and Super QuackHook. Learn more about them in the Rocketcatalog.
Almost all the new characters have their own signature rocketboots visual effect.
More achievements! More hats and grappling hooks! New rewards for getting the more difficult achievements!
Finder of Secrets Gold, and all other achievements, are now possible to get.
Stronger achievement detection.
Tons more dialog in the shop. All the characters can talk with the new characters, and all new characters can also talk with the other new characters, leading to a lot more conversations.
Super Ultra Secret Level, so secret that I'm mentioning it in the patch notes.
Racing-ghosts' ropes have been made less obtrusive.
Various bugfixes and tweaks.
New Performance Mode for people that were having lag problems. Let us know if you still experience lag... the small percentage of people that have lag problems will be our focus in the next couple updates.
Coming as soon as Apple approves it!