In addition to the hourly max game creation limit, there is also a limit on how many games one can create in a 12 hour period.
Max game creation limits:
20 created games an hour. (3 minute games)
100 created games in 12 hours. (7 minute 12 second games)
If you’re playing with your friend for that long, alternate between who starts the next game. Alternatively, you can add more areas besides just Baal to your runs to increase the average game duration. Other than that, make sure to wait a few seconds on each screen when leaving the game, then creating the next game to avoid being restricted for performing actions too fast.
Again, the restrictions were put in place to keep the server stable. Knowing what triggers these automatic restrictions is key to avoiding them.
I hope this information helps.