US casino operator Boyd Gaming has entered into an enterprise-wide system agreement with online casino and solutions firm Bally Technologies as part of a move to bolster its slots offering. Under the deal, Bally’s iVIEW Display Manager (DM) with Elite Bonusing Suite will be deployed across 18 Boyd Gaming casino properties in seven US states. The iVIEW DM allows operators to present self-service player-account access, marketing messages and secondary bonus games on the main screen without interrupting play. Bally said that its Elite Bonusing Suite, combined with iVIEW DM, offers new experiences to slot-play games with tools such as Virtual…