A multi-function modular robot apparatus provides a wide range of entertainment and functional use options that may be tailored by a user to the specific entertainment and functional purposes so desired. The specific entertainment and functional purposes of the multi-function modular robot apparatus are obtained through inclusion of multiple stackable modules. The interlocking mechanical and electric communications connections for each stackable module act as a power and electronic communication pass through to allow for each module to be arranged in any order and in any combination while still maintaining power and function.