I got the achievement by playing on easy. Since someone else said that Normal (possibly also Hard) doesn't count the enemies killed, don't be a hero: if you just want the BOTD play on easy.
found a nasty bug: if you die after you kill the color shifting cube (the one that guards the yellow key), the key won't be there when you respawn, so i'll have to restart the game
regarding the unsolvable last puzzle: it's because the creator's "top 12" is from another source not wikipedia (you will find a link to it in the wiki, so it is legit). Just ignore the "c" that you will find in the wiki top. (I'm trying not to give spoilers).
I have found two small bugs:1. if you use the training points from a drink on a maxed out skill you lose that point without gaining anything (if a skill is maxed the button should be grayed out); 2. in the minigame for the pace skill it happens oftenly that the passer shoots the ball so far away that it's unreachable even by his teammates (in my opinion if his pass is not caught by his teammates we should get the point)
Nice game, to short though. To make it longer two small suggestions: higher skill levels and (2, even 3) simultaneously building towers (on a wider screen with a higher res, of course). Who knows, maybe in Cat god vs Gold King's Son?
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