BTD6 Erosion Chimps Black Border Guide (Update 44.1) 

contrary to expectation, this strategy still works in V45.1 However, this strategy needs to be modified as Glaive Lord and Symphonic Resonance got a huge price nerf 1. Don't place Glue until you get Glaive Lord. And upgrade the Glue by noting you should get MIB before R90 2. Use Ability more elaborately. R82 and R87 are dangerous. From what I've played, you can beat them with just L3. But if you think it's dangerous, use L10 too. I aslo recommend to use L10 on R98, and L3 on R99 3. 400Merm for extra safety is not available but Alch near Spike can be upgraded to 4-2-0 on R99.

Recommend not having on small balloons for vids but other than that dope vid🤙🤙

Written Guide R6 Dart, Sub and Upgrade Dart to 001 immediately R9 001 Sub R10 101 Sub R14 102 Sub R18 Psi(strong) R21 202 Sub R22 Sniper(strong) R23 100 Sniper R27 203 Sub R29 010 Sniper R34 130 Druid R35 020 Sniper(subtitle is wrong) R36 022 Sniper, 000Dart for Sub vision R37 Glue R39 023 Sniper R40 Psi to first, Druid to last R41 Psi to strong, Druid to first, Turn on auto start R42 024 Sniper R46 140 Druid R53 025 Sniper R56 220 Village R59 420 Arch R72 402 Spike(smart), 320Arch, Turn off auto start R75 420 Bommer R84 520 Bommer R85 024 Glue R88 230 Village R93 204 Mermonkey R98 205 Mermonkey R99 420 Arch, 400 Mermonkey

Cool tutorial