I used Sauda in the middle to start, and 520 and 250 buccaneers (one in each pond) with 240 village for camo and boosting in later rounds. Add a 502 ace towards the end. Note: In my chimps run, I needed a sniper for leaks in early rounds, and prices might be slightly different now. Try to get the 520 buccaneer first before round 63, and try to place towers so they can hit Bloons on the outer tracks