@bugwaterguy, To get the "Crossover Story" achievement, Bat has to be buffing Metal with "Sidekicks" while Metal is tanking at least 15 enemies at the same time.
It took me 4 days but I finally got the impossible badge. Two things I'll point that might help. First, I've heard the timer starts as soon as you click on the fireball not as soon as the level loads. Second, after you get the 44 aces, you can go back and use a few more shots per round to lower your times. Example; Level 4. Ace it, then go back and do a quick shot left and then a quick shot right to light both torches. Should cut a few seconds off your time. You can do this with several levels.
Impossible badge is truely impossible. Some levels can't be done in less then 3.6 seconds. Others requre the fireball to bounce around too much to be completed that fast.
Might be different if you could use all that xp you get and have no use for on the other races but you can't. It just keeps piling up with nothing to spend it on.
ok. I give up. Tried twice with the arch angels and red dragons but there's just no beating "The Lord of Hell" that way, and I'm certainly not grinding for days to get another race up to that level to try again.
It started out fair enough but after about 5 levels, it gets pretty unbalanced. Buying an upgrade then having to buy it again in game is pretty annoying especially when the enemy obviously starts with plenty of mana. I couldn't defend my castle because I had to save up to buy the upgrade I had already bought once. Meanwhile, I had 47 enemy approaching. Can't create anyone to fight because you have to save up mana to buy upgrades first.
Really need to add a way to put another gunner on the AAA or lower the tp cost of it. Several times I've placed one and 20 seconds later the gunner is dead and it's useless. All that with 3 sandbags and a tank in front of it.