Something is wrong with the awards. The last few have icons that really dont match the description. ie The award for summoning 60 dudes just has a 20 on its icon.
Some sort of hot keys for the skills would be amazing. The mouse can never leave the screen or else you get no money for upgrades.
Also, can we automatically get the money on the ground when the round ends? A lot of times the level ends with several pieces of money lying around.
You may want to add a little piece of code that prevents blocks from spawning around the princess cage. I just played a castle where I got to the bottom, and although the space directly on top the princess cage was empty, it was surrounded on every side by blocks.
You should seriously consider covering up the topless girls at the end. There isnt an age requirement to use Kongregate, and it would be a shame for the game to get taken down or something due to 'mature content'
 "Memohuntress"){kind=icon}
 "Sticky Ninja Academy"){kind=icon}
 "Undead Throne"){kind=icon}
 "Monster Arena"){kind=icon}
 "Penguin Overlords"){kind=icon}
 "Vertical Drop Heroes"){kind=icon}
 "The Birdinator"){kind=icon}
Wow. R-really? Thank you for your appreciation. I thank God for what ever He has Blessed me with.