What the HELL is up with boulder cavern??? There is only enough money to buy the simplest of traps that rarely work and the first wave is a bloody swarm! No matter what I do I can't even make it to the second wave on that one. This is a good game but some of these levels are ridiculously hard for seemingly no reason.
Is it just me, or are the difficulty levels screwed up? I played easy and it was ball-hard, and now I'm playing normal and it's practically a cakewalk.