Suggestion (i dont know if it's in the right spot this request)

[A3rdn0]

You should add an option to choose how many random splats appear and how often they do. For example: every "x" seconds do "x" number of splats. Or even the possibility do to it in a range. For example: every "x" seconds do "x to y" numbers of splats.

[MrUltimate]

You can do this but just running splatStack.push(parseInt(Math.random() * 20) + 5); with a setTimeout()

[emmalexandria]

For anyone else interested in doing this, pasting something along the lines of
setInterval(splatStack.push.bind(splatStack), 500, parseInt(Math.random() * 20) + 5)
this into the console will randomly add new splats. The second parameter is the interval in ms, and the third is the number of splats.