The monkey’s weakness is secrets, and where to look for them if not in underground secret bunkers and in the game Monkey Go Happy Stage 66 you will find a monkey in one of these bunkers. Don't ask how the monkey found it and how he got inside. But now she's trapped because she didn't think to leave the front door open. It slammed shut and the bunker automatically locked it. You need to look for another way out and there probably is one; in such places there is always a backup option for escape. But you will have to open more than one door to get to the right one, which leads to the surface in Monkey Go Happy Stage 66.
