Devon Smith scored a career-best 107 and Kieron Pollard smashed 94 off 55 balls as the West Indies moved from a modest 142-3 from 35 overs to an imposing 275 all out.
Kieron Richardson snatched at a chance when he had room to work a shot on goal from 20 yards out.
This silent animations were brought to life with musical accompaniment from multi-instrumentalist Kieron Maguire who provided a semi-improvised score using guitar and viola.
Three days after the departure of coach Mark McCall, Ulster made a strong start and tries by Kieron Dawson and Simon Danielli had them 17-9 up at half-time.
We aren't taking a living from him or rely on Kieron for anything.
Robson brought on Kieron Dyer for Solano in an attempt to salvage a draw, but worse was to follow.
Kieron Dyer's pace down the right wing proved a menace to the Potters' defence, but with his fitness clearly still an issue, he failed to start the second half, giving way to Alessandro Diamanti.
The two-time champions bounced back from last week's defeat by South Africa to get off the mark in Group B, posting a total of 330-8 in 50 overs as Chris Gayle top-scored with 80 and Kieron Pollard smashed 60 off only 27 balls faced.
Chris Gayle (80) and Kieron Pollard (60 from 27 balls) took the Windies to an imposing 330-8 on a pitch of irregular bounce, before Roach got stuck in.
BBC: Cricket World Cup: Kemar Roach hat-trick destroys Dutch
Newcastle midfielder Kieron Dyer's proposed move to West Ham collapsed this month because the clubs could not agree on a fee.
Warner pulled Edwards for a stunning six over mid-wicket and Haddin weighed in with a couple of eye-catching shots, but the latter soon holed out to Benn as he looked to smash Kieron Pollard out of the ground.
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