I'd like to put forward a small indie game called Philophobia: The Fear of Love. https://www.speedrun.com/philophobia It's a rather small but cute 2D level-based platformer that can be beaten 100% in roughly 30 minutes to an hour if you know what your doing (Current WR for any% is 22m). There's some neat tricks involving mid-air dashes, wall jumps, and even cycle skips for some specific bosses. Nothing too difficult to master and there's also a guide I made detailing how to preform the currently known platforming tricks as well.
I created the speedrun.com page for this a few years back and while we had a small bit of running for a few months unfortunately the game itself never quite took off so eventuall interest died out and runs simply stopped happening, while I do not run the game myself anymore I'd love to see someone else take on the game and maybe set a new WR in the process. :) Here's a video of the current Any% WR for those potentially interested: https://www.speedrun.com/philophobia/run/m314n04z