The think is once u got hit by the first crystal there's not enough invincible time to get pass the second crystal
Talkin about the bomb upgrade in the bottom left cave
LOL
easy way to get EXP
Get to scorpion and send all troops to 3 buildings nearby then sent it to their main base then finish them of Easy to do then you can add all the challenge you want
LOL made a impassable trap
2 tar pits
1Log (Down)
1Right
1more Log (Down)
So it's the second log > Right > another log > back into the 2 tarpits
and the cycle begin
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