What are some good games to speed run on mobile? It’s the only thing I can record on. :)

Here's Kirby: The Unofficial Fangame:

https://www.speedrun.com/kirbymeme

It is objectively a good primer for everything speedrunning. A very short, free run, with a high skill ceiling, but low bar for entry.

Enjoy one of the best games ever made.

Unfortunately kirby the unofficial game isn't playable on mobile. My suggestion is to play some webgames that are on coolmath, those are playable on mobile I'm pretty sure. Here are some that I enjoy:

https://www.speedrun.com/60ssr https://www.speedrun.com/mini_bubbles https://www.speedrun.com/a_pirate_and_his_crates https://www.speedrun.com/use_boxmen https://www.speedrun.com/sbbp https://www.speedrun.com/jumpnull https://www.speedrun.com/eddynardo https://www.speedrun.com/three_goblets

This is a bit overkill, but I don't know how many of these would work well on mobile.

Note that directly capturing game footage is usually not required to submit a run. If your mobile device has a camera, you could point that at a TV, PC, or handheld screen.