I couldn't map the theme to the game, but that would be only big gripe. The name is funny, but gameplay is hilarious. It's sooooo frustrating when things get hectic, and that's not because there is not oversight or things are complicated. It's due to you brains inability to not screw up such a simple task.
You could easily expand this with 2 crocs across each other (one waits till the other one calls), emergency auto-crocs or dial time-outs when you repeat the same number to make it even more hectic, but then I would opt for a different control scheme.