The AI needs improvement. It sometimes lets me play a winning move even when it has a witch out and a card in its hand; there's no reason that I can see why it should ever do that.
Yeah, I now have all achievements, but I still have Floor Spikes left to buy and only 1 scarab to do it with -- two of the achievements didn't give me scarabs for some reason.
I did the Dozen Minutes achievement, but didn't get the scarab. I think one of my other achievements didn't give a scarab, either -- I have 11/12 achievements (no cursed flesh yet), and have purchased all but spiked floor, yet I have 0 scarabs when I should have 2.
It's kind of annoying how some upgrades (the ones that grant new gems, and which only help you once a gem has been stolen) are totally useless if you're going for a Brilliant rating.
Not sure what could be done about this. But it's annoying.
Suggestion: Change the color of the score on the level-select screen for levels where you got a perfect strike. This makes it easy to see places where you can clearly reply to increase your score by a lot.
When you're going for a pacifist run, some of the upgrades actually make the game harder, and can't be turned off. Is this intentional? Maybe there should be a way to turn off all the auto-damaging upgrades with one click? Or maybe there should be two development routes, one for nonlethal upgrades, one for lethal upgrades?
It seems like the game doesn't count dart kills for the "number of people killed by darts" counter (whether the poison kills them or the actual 15 initial damage from a dart landing), which in turn makes the "get a kill with each weapon" achievement impossible to achieve.
If you want more players, you have to remember to vote it up. It used to have tons when it was on the frontpage, but now it's fallen so low in the rankings that nobody sees it.
Selecting a tower or spell and then trying to select another one wastes it (and the cost associated with building/casting it, and for towers, causes the cost of all towers to go up.)
Sorry about that... can you try again now?