Shadow of the Colossus is easily one of the most fulfilling video games you could possible play. It really is just pure, epicness. Climbing huge monsters, great horse battles/controls, no lame in game gimics. I played it years ago on the PS2 and I still remember it because it is just that good.
SotC is one of my all time favorite games, and I've always wanted an HD update. It still hold up to close scrutiny and with trophies, it's even better than the original! Not to mention it's only $40 for both ICO and Shadow of the Colossus. Do yourself a favor if you haven't already - play these games. They are emotional rollercoasters and still viable entertainment in today's gaming environment.
To say that these games are must play is an understatement. These two games represent everything that Video Games as a medium have achieved over the past 30 years, and are the final proof for any disbelievers that video games can, and should be, considered as Art.
If you haven't played either of these games, then this set is an immediate must-buy. Each game is epic and engrossing in ways other games never could manage. The scale of the colossus and the world of Ico were unheard of in their time and still stand up to the latest games.