Use Adobe Flash Player with Android 4.4 (KitKat)

1) Download Dolphin Browser 

Download link: https://play.google.com/store/apps/details?id=mobi.mgeek.TunnyBrowser

2) Download the hacked flash player

Download link: HERE

Warning: Make sure that you have uninstall the flash player installed in your device and then install the hacked one for compatibility reason.

If your devices refused to install apk outside Google Play, you may set in your device (Settings> Securities> Unknown resources) to allow installation of apps from unknown sources.

3) Make sure that the flash setting in Dolphin Browser (Click Menu>Settings>Web Content>Flash Player) is on.

Flash Player is not officially supported and therefore the speed of loading of flash video may be slow. However, I have tried many sites such as YouTube and Hulu. They all work properly with satisfactory results.

After that you can open flash and flash game on your mobile or tablet.

Source:http://forum.xda-developers.com/google-nexus-5/help/guide-how-to-play-flash-video-android-4-t2548001

Thanks all.