This game is a varient on a fruit machine. Players start with 500 credits, which are removed for each action and awarded for each line. A line is where every party displayed is linked to the same murder or series of murders. 30-50 credits are awarded for each line matched depending on the line.
The main action is to spin. 10 credits are removed for each spin. By default, all three drums spin, but each drum may be held individually to complete a line. Each hold is free, but lasts only for one spin, after which each drum may be re-held. A spin costs 10 credits regardless of whether any drums are held.
The nudge feature advances the position of a single drum by one. 15 credits are removed for each nudge.