spent way more time than i'd like to admit trying to figure out an optimal setup on the second level (thinking having walls already placed at the start gave me an advantage on the early levels) only to be absolutely demolished by the last wave due to sheer lack of DPS.
then i realized everyone else had cleared the first map instead:
https://www.newgrounds.com/dump/item/d5aea8500da6b4c93d4ddbd446c7a536
ahah pizza tower go boom.
even this can probably be optimized if you upgrade some of the towers in the middle instead of adding the top layer (though you still need to place at least one near the spawn so they don't just hug the top wall)
my only gripe with this is the weird balancing issue (you never want the jalapeno tower because you need the money to set a path first, and on later levels more range = better damage overall), and the difficulty curve caused by not having a set path to follow.
personally it's the first time i've seen something like that, but with no in-game explanation for it i would have never figured out why the enemies seemingly picked a path at random every time i started a new game. gotta thank other reviews for that.
P.S. i'm assuming the scores are the highest wave reached.
honestly i have no idea why i got 40, since i only cleared wave 20 with this setup and then submitted score there