This is Block Bash, one of the large size Cube World modules from Radica, dated 2007. It runs on 3 AAA batteries, and will interact with other Cube World modules (both large and normal size) when they are arranged together via their magnetic links. It has been tested and it works fine. No batteries or anything else is included.
Accepted payment methods are:
Money Orders and Cashier's Checks
Personal Checks (expect a hold of up to 10 business days for clearing)