I need some good mobile games to run that are no longer than 20 minutes long. Any recommendations?

cat bird

Here’s some.

https://www.speedrun.com/speedrunning/thread/kkioc/1

dadish, super cat tales, bomb chicken, leap day, dadish 2, supercat tales 2

Rodeo stampede

You could try the mobile version of "Robot Wants Kitty" (which is a different game from the old Flash version from 2010): https://www.speedrun.com/rwk_mobile

But it's probably easier to play on the web version of it.

TING

A mobile RPG Text game in which you can make several types of Speedruns, it is simple, direct, requires good memory of the player, good tactics and of course good RNG. The game usually takes more than 1 hour to complete, but speedruns can be done under 30 minutes. This is the link:

https://www.speedrun.com/life_in_adventure

Portalize. Its a full-on Portal remake for Android, IOS and Web Unfortunately its quite hard to run as you're gonna need an old android phone (if youre running thr android version anyway) that can run 3d games, but not so new that its incompatible, as the app is so old they stopped updating it.

I havent tried the web version yet, seems to be a different set of maps but will check out eventually. Cant play the IOS version yet, till i figure out how to get past Apple's region lock for apps.