by Calysto » Sun Apr 17, 2016 4:27 pm
You have to accept the limitations of the console.
If you want to build an arena add enemies in waves, add more after the previous wave is defeated, experiment to see if the toy box can handle 10 enemies then 20 and so on. Disable the spawning animations, etc.
The boss spawned takes a lot of memory, add it when you start building. Activate it and see how much memory meter it takes, then take that into account.