Why do you need to install Plugins for Octopus?

Plugin makes Octopus work with 64 or 32 bit games, and keeps you connected to Google Play.

In addition to the map key, what other features does Octopus have?

A very popular feature from Octopus: Record each match. Octopus has a built-in Screen Recorder, which records the screen with high quality image standards and plays it back at will. When there is too much memory on the phone that hinders the speed of the game, Octopus also has a "cleaning fairy" function for the phone RAM to help keep everything neat. Octopus also has the ability to sync. All you need to do is just download the app and access. Then it can be used on any phone without having to reinstall it from scratch.