>>365835572
For the 3x3 you do chasing the lights, press the square beneath a lit up square until you are at the bottom. Then do one of three patterns to get the remaining two or three lit squares on the bottom, two of said patterns being mirrors of each other. x would be where you press and - would be where you don't. 
For the bottom left one being lit use

xx-
--x
x-x

and mirror it for the bottom right. Then for the bottom middle use

xxx
-x-
---

These patterns only affect the single tile mentioned. So you effectively only have two patterns to memorize, and you can do one after the other without issue.