The subject relates to a specific version of a popular rhythm-based platformer game, distributed as an Android Package Kit file. It signifies the installation file format used by the Android operating system for distributing and installing mobile applications. The numerical designation denotes a particular iteration of the application containing specific features, updates, and potentially bug fixes from prior releases.
This form of digital distribution allows users to obtain and install the game on their Android devices independently of official application stores. This can provide access to older versions, modified versions, or versions not available in specific geographical regions. Its prevalence arises from factors such as bypassing regional restrictions, obtaining specific game versions for compatibility or preference, or accessing unofficial modifications.