When getting meteors for ninjas, just in case, if you don't use them, and you have a tower to upgrade, DO NOT just click on it to upgrade, click on a tower as if you were going to buy it, if you have enough money or not, doesn't matter, THEN click on your tower to upgrade, I don't know how many times I've clicked on my towers to upgrade and end up calling meteors on them >.>
Great game, really addicting, currently going for the hard badge, wish me luck! ..Also, a tip for the ninjas, wait until they go stealth then hit them with meteors, helps when they come back from being stealthy, they have lower health, so if you have more towers, they will take them out easily, hit + to keep this at the time, hopes this helps others. And one more thing, don't expect to get the hard badge on your first try, I've restarted a level about 5 times, and eventually beat it with excellent.
shouldn't be able to move the blocks in between the lines, should be one whole move over to the next place. i don't know how many times i've messed up from that.
I don't like how the guards can see you if you're close to them , like , there was these two guards and they were both looking away , I ran between them and then they started shooting me when I didn't run in front of them . . . Not cool .