Usually enemies try to avoid each other but you can disable that
then you could cram 1000 turtles into one place
which would probably fuck up the game if you killed them all XD
you'd just hear VTFSGSTFSTVIRNGDIDJWV3YHFNDIDGSHDGEJDNEOOEHAHHHHSUIND
It's not UnfairXXL

p!8ball will there be a 1m fight at some point?
1 million enemies on screen is just too much