I would have appreciated the game more if I could skip a few levels to come back to them later. Having to stop, stumped, for hours makes me frustrated and ready to move on---ready to cheat in order to move on, so I can enjoy the rest of the game despite one stumper. Don't let one nasty holdup ruin the game! Allow a couple skips!
It's a lot of reading. Unfortunately, the people needing this aren't the type of people who want to read. Make it more interactive, and make the text more concise. For example, ask "Where do I click to submit a bug report?" and then show the image of a typical Kong game with its instructions and links and whatnot underneath.
The delay on the tilt ruins the feel of the game. I'm not sure if this is a Flash programming efficiency issue or what, but if you could adjust the smoothness of movement, it would improve gameplay immensely. The mechanics themselves are brilliant!
I can't seem to cancel building an object. I'd like to be able to see stats about the creeps coming my way, so I can decide what I need to build. Things need to be firmed up a lot. This is a workable structure, but there are a lot of improvements to be made.
 "Wooden Path")
 "Shootorial #1"){kind=icon}
 "Orbs"){kind=icon}
 "Z-Rox")
 "Blocks With Letters On")
 "Runescape")
 "Dog Eat Dog"){kind=icon}
 "New User Tutorial")
 "Color Vision Deficiency Test")
 "Prism- Light the Way")
 "Spin-In")
 "intrusion")
 "Swoop-to-Nuts"){kind=icon}
 "Fishy")
 "Bowja the Ninja 2 (In Bigman's Compound)")
 "Aliens Must Die : The Jupiter Wars")
 "Besieged")
 "GemCraft")