Soaring Under has orbs you can pickup as an extra challenge, and they can be REALLY difficult to grab. "Your teammate" on discord sent me this video of collecting 14 in a single run!

https://cdn.discordapp.com/attachments/207638242273525761/836969031042072617/collect14.mp4

I've only gotten like half that. Anybody think they can top it?!

https://ldjam.com/events/ludum-dare/48/soaring-under