Board Thread:General Discussion/@comment-27704034-20160514122233/@comment-26316965-20160514211621

The left side player is the one that hosts the game and is the one that determines if lives are lost and so on. Thats why if you're on the right side sometimes, the rounds start before all the bloons are gone, it can take a while for the go button to appear even though all bloons are gone, and sometimes bloons leak but no lives are lost.