The present invention provides a composite wall panel with good thermal insulation and sufficient strength for structural use which is designed for the fabrication of energy efficient building. The typing game machine performs a game that provides higher evaluation for higher matching rate between a predetermined character array and a character array inputted from the input device by comparing respective characters constituting the character arrays. Each connector of a matrix of electrical connectors comprises a pair of opposed, spring contacts having independently-deflectable portions to insure proper electrical contact with an electronic device of each object identification assembly. The master counter is reloaded on rollover by a count limit register.