(Apprentice, TB Monk) Build all towers and activate the secret buttons, place rest of LTs during the wave, Tower Boost all wave every wave on splitscreen
Wave 6-10
(TB Monk, Upgrade Jester) Max Upgrade all towers while you Tower Boost on a splitscreen. Once all towers are maxed, use a Boost Summoner on split until boss wave
Wave 11
(TB Monk, Boost Initiate, Boost Summoner, Builder Apprentice) Monk and initiate boost through last and boss wave. You don't have to move app from spawn
During the boss wave, hide in the corner and against the wall so you don't get hit by cupids
Optional stuff:
You can use the minions as shown if your stats aren't good enough to win without them, this build is very interchangeable
You can replace the initiate with a DPS monk with a good pet to make the boss wave go quicker, but it's more cozy to hide in the corner and boost