Good luck! It's all that you need in freeroll poker games with so many players and a quick timer! Only with a lot of luck, you can survive all those all-ins through the game... it's definitely not about the skills, it's about picking the right moments for an all-in and having the luck to win... all cards are playing, and too many times I had crazy outcomes on many hands!
I guess this is just fun... have a good time playing free rolls if you have free time, and if you are lucky you can make at least some bankroll and start playing paid tournaments, it's where poker is completely different! Good luck!