I noticed some websites copied the game so if you wonder what the original one is you just found the answer with that link:

http://armorgames.com/play/13662/give-up

Now that Adobe Flash has been shut down entirely you can no longer play the game by using the original link. Luckily there is now a way to play it offline, for free and without ads: https://bluemaxima.org/flashpoint/

Quick note that the game is also available here:

https://de.y8.com/games/give_up

Although I probably won't speedrun this anytime soon, I desperately wanted an easy way to play this again and I just wanted to thank you for making me aware of Flashpoint, bloody amazing :)