After mucking about with it for a bit, the snake is rather prone to killing itself in the top right corner, so I managed wins with 2 and 3 friends lost, which does not crash, 4 or higher does crash until 13 being ok again. Pretty sure the longer win message crashes it just barely.
And yeah, getting around that limit can be painful at times, doing the snake on a background layer would help, but that tends to take more time to code.