Quick bits of info, not really an official post...
- You can't currently leave a challenge until you fail or succeed. This isn't permanent, this is just a very early release of the challenge system.
- You can't do anything with CP currently. It's score only for the moment. You are still given rewards for challenges though.
- TimeFreeze is not supported. A notification will be added in upcoming patches.
- Duo / Group modes are coming up soon.
- Challenges are meant to be 'Challenges', so don't expect to get through every stage of every challenge. Some may takes weeks before you can progress through even early bronze challenges. Bronze != easy, just the initial difficulty of the challenge. Also there are only 3 very spread out (difficulty-wise) challenges, so don't feel let down just yet. There will be several more easy challenges soon.
- Currently there are 3 challenges. I made an easy one, a hard one, and an insane one difficulty-wise. I'll be working out new challenges in between these over the next several days.