I stumbled upon this one a few weeks back, i didn't realise it came out in 2014 until now! I love the fish eye lens used, it makes me think that more platformers should use this effect as you're able to see ahead without the camera feeling too far away. also reminds me of what Sonic Xtreme was going for.

I played for a solid half an hour until i eventually got stuck, but before then i was on a roll clearing each segment without  much trouble. This was a fun ride and an interesting perspective!

https://managore.itch.io/birdsong