NewGrounds.com is holding a competition for flash creators.
To enter the contest you have to create a animation, interactive content or game coded in ActionScript 2.
That is because this ActionScript 2 can run in the browser using Ruffle.
Here are some of the winners from last year:
https://www.newgrounds.com/collection/flashforwardjam
Game Prizes ( check new grounds for updates )
1st – $700
2nd – $450
3rd – $300
4th – $200
5th – $100
6th – $95
Movie with Interactive Element Prizes
1st – $50
2nd – $50
3rd – $25
To help you get going here is a modified version of Flash Professional with Ruffle support
And here is a list of tutorials:
* Be sure too google ActionScript 2 Tutorial