Online, W, and Drill Till You Drop have been listed as the weakest for their poor presentation and lack of innovation. Online in particular was negatively received for its online multiplayer, which multiple reviews found to have been unfinished and "broken". Drill Spirits and home ports of Mr. Driller and Mr. Driller 2 were criticized for being barren of content, though the Japanese and European releases of Drill Spirits'' have been identified as being a far bigger improvement over the North American version for their inclusion of additional game modes. Notes References External links Official website (Japanese) Bandai Namco Entertainment franchises Video game franchises Video game franchises introduced in 1999