Only the money magnet and fireball are worth getting. The default wall is perfect as is, so the upgraded walls aren't necessary, and it's never necessary to use healing, even on the harder levels.
Very cool game mechanic, though!
I'm not in love with the fact that you have to sacrifice units to damage the enemy's portal. The battles would go a lot faster if your units just piled up on the portal and laid siege to it.
Pro-tip: It's just as profitable to give people quality for free and rely on donations and Google Adsense. And it's much better PR.
Nonetheless, enjoyed it. I thought it was unplayable until I learned that I could use the up and down keys instead of the action button. Then it played a lot smoother. Keep up the good work.
This game is a lot of fun. Certain of the powers could stand to be tweaked, though. The Black Soul powers ought to be a little cheaper. They aren't nearly as powerful as the second Blue and first and second Yellow powers, which allow for huge Red Soul combos.
Really fun, though, keep up the good work.
I don't understand the meaning of 'bishops cannot be placed on a square where it [sic] can be captured'.
Why are Ba1-d4, Bd1-a4, Ba5-d2, and Bd5-a2 all valid first moves, then?
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