I have an idea on how to get replays on nulls royale. I understand that you cannot enable replays because you do not want to buy cloud space to store them. But what if you didn’t use the cloud. What if you stored them locally on the device and deleted them automatically after maybe 1 day. There would of course be an option to turn this off, as some devices do not have enough storage. You still would not be able to share it, but you would be able to watch it, which is better than nothing! I hope this is implemented soon if you find it suitable 
Replays… Maybe a good idea😁