"Hire one of each type of staff." I would love to. I would really, really love to. Kind of hard when they're not available. Not even bothering after that.
Pretty serious glitch where even if they're not asleep your staff doesn't do their job. Considering how erratic the number of guests are, you need every dollar, and unreliable staff is just artificial difficulty. 3/5 for that, and the fact you couldn't come up with something better than fires and staff falling asleep. Really?
OMG WTH? I hit Italy, 6 booths and 5 employees and the lag is so bad it's nearly unplayable. I maxed out the storage as recommended. This is ridiculous.
Final conclusion: The grind required to even get a shot at end game is insane. Even if I wanted to spend money, I can't go buy specific towers and I'm not willing to spend that much on a slot machine. I spend 38 creds on the game and I don't regret it, because I did enjoy it until the last level. The game is too short level-wise for that kind of increase in difficulty at the end. Shamans and flying units are stupid overpowered. Slow, stun, and poison towers are useless after the first few maps. Sharpshooter is useless right off the bat. Every tower has a fatal flaw, even fully upgraded. It's too bad that the game got so freaking frustrating right at the end, because I thoroughly enjoyed it up until then. 3/5
Add me to the list of shamans are crazy. I have four mortars together doing a combined total of 25k+ and two shamans are just sailing through it. One of the mortars is on a speed up. Just a tad unbalanced.
"Need silver? Sell the towers you don't use anymore." I would love to. I really would. So now I'm level 19 with a useless Wooden Tower, Slingshot, and three others I can't sell or fuse taking up slots.
We know it's literally impossible for a 2 person team to test every browser, operating system, flash version; which is why there are game testing sites to help small developers with testing and QA. Even Kong allows game tests to be uploaded.
The speed up causes all kinds of weird glitches. Flashing items on the screen, lag, energy not registering correctly, batteries not recharging correctly. Really need to fix that. When I restarted it after using the speed up 2 times, it was INSANELY glitchy and impossible to play. Had to refresh my browser to clear it. Fix that and you have a 5/5 game here.
If you want to compete in the TD genre, I'd suggest you do some research into what has made the most popular games just what they are; the most popular. As it stands, this is just not up to par.