Two minor grace notes - the upgrade panel should let you know when a tower is maxed out. Also, the modifier towers should show whether a tower is affected - the ring doesn't really make it clear if a tower is in range or not.
Here's a fun little game - look at the badges that the people who claim the game is too easy ... they don't have any "Hard" badges. Must be king-hell gamers!
Fool's Gold
Dude! You just completed the Fool's Gold achievement in Zilch and won the Fool's Gold badge and 30 points!
Clearly, this game is rigged in favor of people who don't think it is rigged!
Goatboy, you are a mod and level 36. Ostensibly, this might lend you some authority. Nonetheless, what is unfair about a rule that applies equally to the CPU and to you?
The boss level does have a bug. If you fail and retry, the boss health stays diminished, and the second wave will be bombs and lasers at the same time. I was able to reset the boss level by exiting to the title screen and returning, but until I figured it out, it was pretty frustrating. I don't think it needs a pause, the levels aren't that long. I would love to see an expansion, though.
Jenkin - This is in no sense a copy of Cat's Corner. Only the basic mechanism is similar. Power-ups both on the board and in the side-bar, time-based play with bonuses - it's a totally different implementation of a fairly basic concept.
I like the game, but it is buggy. Currently, the game is stuck, because a car drove away from a pump during fueling, so it looked like the hose was on the ground. I placed another car at the "broken" pump and the game is stuck. The customer won't get mad enough to drive away, the level won't end.
Regardless of the excuses, the author is going to get relatively few plays without a save feature. The game takes too long to play through in a single setting.
 "Civilizations Wars"){kind=icon}
 "The Next Floor"){kind=icon}
 "Frontline Defense First Assault"){kind=icon}
 "The Great Siege"){kind=icon}
 "Colourshift"){kind=icon}
 "Zilch"){kind=icon}
 "Artificial Junk"){kind=icon}
 "Robo Riot"){kind=icon}
 "Gazzoline"){kind=icon}
 "Divine Generals"){kind=icon}
 "Shopping Cart Hero"){kind=icon}
 "Flash Empires 3"){kind=icon}
 "Onslaught2"){kind=icon}
 "The Codex of Alchemical Engineering"){kind=icon}