I'd love to have a stats screen to look up highest attack, total number of monsters killed, number of bosses killed and so on. Would also help to keep track of achievments.
Is it just me, or is the goldfish in the first pool the only one you can feet with burgers? I was klicking on another goldfish while in pool one there was a whale and what happend: Whale became goldfish again, without timer, without whale to sale and one burger poorer.
Nevertheless: Great game! And @Dev: You're the Ping of the world ;-)
I'll add this in further version, after redesign the UI, no free space now.. :)