i do not understand how your supposed to do level 20 at all :O sooooo hard i did everything i could do and every time i failed i moved in circles focused on tanks killed the blue robots that kick you went in the cornor died all the time and i had all the weapons and armor and boosts fully upgraded and equiped :(
If you are the man who farms wheelies and jumps copy and past the folowing : 18 1i 18 18 18 u u k k k,18 1i k 1i 0 1i,18 1i -k 1i,gs 5u gs 1i f0 1i,gs 5u f0 5u##B gs 4c 99,B h6 5k 9r,B fa 5k 1o,B fk 4m 12,B fu 5a b8,B g8 5a b,B hg 5k 8e,B gs 6i 9r,B h6 68 9r,B gs 42 7c,B h6 3e 7f,B fa 42 3s,B fk 3o 4f,B gi 34 5k,B hg 3o 85,B hg 50 80,B fu 6i m,B f0 1i 47,B fa 5u 1d,B 1s 18 2f,B 26 1s 12,B 1i 1i 28,B 18 2g 1d,B 1i 26 1o,B 1i 2q r,B u 2q 1o,B a 2g 1d,B k 1i 1d,B -k 18 24,B u -a 61,B -1i a 3i,B -a 1s 1d,B 1s 34 99,B 26 26 8e,B a 34 24,B u k 41
if you dislike holding down the fastfoward button you can do one of these two one minimize your window so the pictures dont have to be uploaded and it will finish each wave about 20x faster than the fast foward button or you can just hold fastfoward button down then right click and then you have it holding it for you