Flash content is getting blocked in the latest versions of browsers. To enable it in Google Chrome,
first open your browser and type chrome://settings/content/flash in the address bar or go there from
menu "Settings / Privacy and security / Site settings / Flash". On a flash setting page, set toggle
to Ask first (recommended). Now, with Flash enabled, whenever you visit a webpage with Flash content,
you’ll need to click on the Flash player for it to start.
Are you confident with your speed reaction? Test yourself in Wack, a puzzle game on www.flash-games.net, in which your job is to click the right items as quickly as they appear and avoid the wrong ones. It seems simple and actually it is, but the challenge is that you need a very clear mind because you are easy to click everything that jumps out, which means you may click those unwanted and that will result in zeroing out of your score. So, focus your attention and good luck!
If you want to play this game offline and without any browsers after December 2020, then download .swf game file and use any Flash Player that runs .swf files.
For Windows users, I recommend ARFlashPlayer (it supports fullscreen option) or official Adobe Flash Player. Both programs are portable.
Another way to play flash games is to install SuperNova SWF Extension (it works in Chrome only).