anyone made it this far? i have tried everything, it seems like i have to farm crystals in order to afford the proper crystal upgrades to beat this level? so early in the game though? i've tried so many strats, the last guy just gets way too close with the birds and either he takes all the lives or the birds do because theres only six tower slots available and the birds have a ton of hp. im lost....

Any good strategies for this one?

At start of the last wave of map 20 I had all my 20 lifes, than a grandma appears, running like a bolt and ignored by every tower. She took all lifes. Who needs this? What level designer is there mucking around?

Some spells I equip are not shown when I play a level... Why? I don´t get it

Убиваю всех на 15 атаках, но прибегает Боссиха, сучка, и быстро проносится мимо всех моих башен к замку (даже двух морозилок). Какая расстановка башен вам помогла? Kill all enemies from all 15 waves. But the Boss-♥♥♥♥♥ came and fastly run throught all my towers (even 2 frost). Which tower placement can help?...