It gets so hot then restarts over and over

When you say 16GB I’m guessing you’re talking about storage. This should not make a difference. Does this happen when you are doing other things on the tablet or just when you are playing the game? The game might be too much for the device to handle causing it to overwork itself therefor overheating and then it restarting. You phone might have better hardware than the tablet. It is also possible that there are other problems with the device such as a bad battery.