Hmm i found the same wall and clicked it which turned my screen grey. Its also quite hard to know where im supposed to be going should have a marker or somethng to show the end. Other than that it's a decent idea
Level 14 was a challange but the rest of the levels are quite easy.
All custom maps on here are pretty straight forward, Too many blockers making the solution stand out. If anyone wants to try my level the code is
{!2%"1G#0"$1G&0$'0"(0"+0$,0"-0".0C00#50960#:0#;1|z0"=0G@0"A0#C0"D0"E0"F0"J0DK0#L0DZ0D[0D]0"^12_0"`1/a0Ab0)d1De0&g14h0"i0"j0"k0"l0"n0Do0D~%/5#(~!C"9#|+C,)-95@6(7C??@DA9I|J?S|T/U@}