Sometimes the bonuses seem to be applied twice. E.g. you do cultural exchange with nomads, receive 2 points (or so the game says), get two technologies with them, apply -- and bam, the 'tech' button is flashing again and you have two points there...
Base damage formula is broken, making the first (or couple) of demonic upgrades overpowered. I mean, e.g. delay is calculated to hundredth of a second, but base damage is in wholes, so e.g. temple damage jumps from 2 to 3. Less noticeable for bigger base damage, but it's still way more than "+0.5%" it claims on the skills screen.
I'd suggest to revamp damage and enemy HP to take into account tenth of a point. Base damage would display it, but HP on could just omit this.
A bit too easy once you get your hands on ball control boots (and I don't even have all that great reactions, so sometimes I fail to "control" it). Of course if you have no life and spend too much time practicing this game.
Actually possible to get brilliant on all the maps from the first try. I mean that you don't need to get extra XP, not that you won't have to restart, of course ;) You need to max various mana skills (max MP at 500 is a must), meteor (both damage and cost) and get adoration. The big boss ninja on last level can only be reliably killed with 5 meteors, so you'll need all the mana for that. Stockpile some gold and build temples right between waves 39 and 40, since otherwise you won't have mana at maximum after pesky ninjas in the previous wave.
A bit too easy. I'm not good at this type of games, yet had no troubles earning the "hard" badge (died more of boredom than of difficulty). Though I guess on touchpads it becomes more difficult than with a real mouse.
Hm, I mostly waited out all waves in the fort, killing only first few enemies. And successfully repaired the balloon. Is that a bug, or is killing only needed for better score?