I did not receive anything from itch, so I found this on the Co-Op Bundles section: Once the page is created you'll have to get each participant to approve it by having them head to the page of the bundle. You'll have to send each of them a link, they will not be notified by itch.io. So it looks like you have the link of the bundle.
Ok, for the bundle title I could only come up with "Retro Challenges: Puzzles & Jumps" or "Retro Mindscape: Jump, Solve, Conquer!", you can choose between the two on which sounds better or don't use any of them.
For the description area of my game, put:
- Plunge into the mysterious depths as you seek the buried escape pod beneath the planet's surface
- Hand crafted levels and boss chases
- Controller support