I don't think all of the achievements are added in yet, unless there are achievements for a high score, high level, ridiculous amounts of treasure/kills, or odd stuff (such as the achievement for dying). I haven't found an achievement in a long time, and I'm still 9 short of 85.
Here are a couple of achievements: Kill 1,000 Monsters and Rescue the Princess 15 times... and I'm still missing 9 achievements. It'd be nice if there was a stat tracker we could view.
I kept getting stuck in place after freeing myself from a zombie. What really sucked was that it also happened when I had a partner, and I saved the game right before a group of zombies came to gang up on her and kill her while I stood in place helplessly (I wanted to see her die anyways)... but then when I refreshed the page and loaded my game, I was able to move again, but she wasn't there.
I agree that Zombie Defense on Expert needs to be rebalanced. Even if you play like a pro and don't miss a single beat, if you don't get those massive combos, you're dead.
The boss on floor 50 went down fairly easy with level 24/25 characters, mainly because I had Phoebe be a Rogue and used Outbreak (it does multi-status effects which includes paralyze and sleep... so all the monsters in the dungeon, including the final boss, were like beating up on dummies). What doesn't make sense is that I was only getting 1 experience point for killing high-level monsters... I thought that challenging my characters would make them earn more experience.
I find it annoying how I'm forced to use my bombs to kill the turtles that my penguins can't get to because there's a wall in the way. It's like saying, "Since I'm too lazy to improve on the penguins' AI, I'm just going to add in bombs." Other than that, the game seems fine.
If you're wondering what the secret is for the main menu, keep the snails idle on one of the buttons for 30 seconds, and something amazing will pop up on the screen.
Weird... Gun Price is 72,214, and I have 72,756... yet it says I don't have enough fund. But, if I keep pressing on the Buy button repeatedly, it'll eventually ask if I'd like to buy one. I think it might mean that the price it shows may not actually be the price you pay... it might randomize the actual price just like how they randomize the price it shows on the shelf.
I got the princess by tossing her onto the bed of water, and mounted her with the pedo bear. She may try to squirm out from under you, so in that case you'll have to keep thrusting onto her until you manage to pin her down well enough. Once she's passed out, you can bang her against the wall for some extra points, or just continue laying on top of her...