maxgamr 
With the 2.17 update to BTD5, we have a cool new ADVANCED map called knot – similar to the Advanced map "The Eye", but I like Knot better!
I tried the map on IMPOPPABLE mode –
Again using my trusty Monkey Engineer to start. By round 63, I added several Ninja Monkeys, then in the late rounds I added five Bloon Chippers. I had to set the target of several towers to FIRST to ensure there was a good mix to beat the FIVE ZOMG bloons! BOOM DONE!
