#Ouch has 4 entrances and 4 exits that are all active every round, with the two top-bottom paths being about 22% shorter than the left-right paths. The pond being in the middle of the 4 lanes allows for a variety of utilizations of water-based towers on this map, and the pond can be drained for $1,000 if no water tower is placed on it. Unlike every other True Expert map (the other ones being Bloody Puddles, Ravine, Quad, and debatably Dark Dungeons), #Ouch has no line-of-sight blockers.
Strategy
The very short length of #Ouch, the presence of 4 lanes, and Spike Factories not being particularly useful for tanking Bloons due to the 4 faraway exits make #Ouch a True Expert map, one of the hardest in BTD6. Water strategies, such as Destroyers coupled with Permanent Brew, do relatively well on this map. If the water is drained, Grandmaster Ninja becomes a powerful Black Border strategy when paired with Shinobi Tactics.
The central water spot and Symphonic Resonance's greater range on water allows it to cover all 4 lanes on #Ouch at once. It stalls MOABs, BFBs, and DDTs very effectively, and the timed nature of the stall makes the stall especially important here due to the very short length of this map's vertical lanes.
The center of the map is very optimal of the well-common "Shinobi Strategy", where you have 1 Grandmaster Ninja and 20 shinobis, which can lead to really easy black borders. Generally speaking, Geraldo is the preferred hero of choice, as Gerry's Fire eases the saveup to Grandmaster & deals massive damage late-game thanks to shinobis buffing it, Pickles & Sharpening Stone are great on Grandmaster, and Genies do massive damage during the 90s. Obyn can also work, albeit not as effectively.
Gallery
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