Perhaps one of the highly anticipated HD collection of two popular games by Team ICO, especially Shadow of the Colossus. I will try to review both games into one review. This HD collection comprises of two highly acclaimed PS2 games, ICO and Shadow of the Colossus.
Story (ICO)
A boy with horns by the name of Ico was captured by the people at his village, whom considered Ico as a bad omen or a curse. They placed him in a stone coffin, and suddenly, a tremor collapsed. Ico took the chance to escape, and met a mysterious girl by the name of Yorda on the way. Shortly after Ico released her from a cage, Ico took her and plan to escape the castle, alive.
The story is very interesting, despite it's minimal dialogue and exposure to the character's background. There are only 3 main characters in the game. Ico, Yorda, and Queen. I'll try to summarise their backgrounds without giving out much spoilers. Ico is a boy with horns, and has some amazing acrobatic skills that allows him to climb walls, etc. Yorda, is a mysterious girl that can't speak Ico's language, and is constantly hunted by shadowy beings. The Queen, is Yorda's mother, who herself can use strange powers and wanted to keep Yorda from leaving the castle. I love how the game's story carried out, as it makes every dialogue spoke by each characters rather quite important to understand the game's story well. It is interesting to note that the game uses it's own special language, for Ico and Yorda's language.
Graphics (ICO)
ICO has beautiful graphics, especially the environments. The characters also looked great, especially after the HD remake.
Story (ICO)

A horned boy by the name of Ico met a mysterious girl, Yorda in a castle and tried to escape from the castle.
A boy with horns by the name of Ico was captured by the people at his village, whom considered Ico as a bad omen or a curse. They placed him in a stone coffin, and suddenly, a tremor collapsed. Ico took the chance to escape, and met a mysterious girl by the name of Yorda on the way. Shortly after Ico released her from a cage, Ico took her and plan to escape the castle, alive.
The story is very interesting, despite it's minimal dialogue and exposure to the character's background. There are only 3 main characters in the game. Ico, Yorda, and Queen. I'll try to summarise their backgrounds without giving out much spoilers. Ico is a boy with horns, and has some amazing acrobatic skills that allows him to climb walls, etc. Yorda, is a mysterious girl that can't speak Ico's language, and is constantly hunted by shadowy beings. The Queen, is Yorda's mother, who herself can use strange powers and wanted to keep Yorda from leaving the castle. I love how the game's story carried out, as it makes every dialogue spoke by each characters rather quite important to understand the game's story well. It is interesting to note that the game uses it's own special language, for Ico and Yorda's language.
Gameplay (ICO)

If Yorda is taken by the shadow monsters and you are too late to save her, then it's game over!
The game is an action adventure with puzzle-solving and platforming elements. Ico can run, climb ledges, climb ladders, and others like most other action platform games. He can also attacks using an equipped weapon such as a stick and a sword. You need to solve puzzles in the game with Yorda, as she is vulnerable to the shadow monsters' attacks. She can be easily captured by them and she will be taken by the darkness if you are too late to save her.
The puzzles in the game are incredibly well-designed and can be challenging, as the game is not really linear despite it's 4-6 hours playing time. You have to explore and try stuffs in order to solve the game's puzzles effectively in order to proceed, since there ain't any guide or hints to help you in the game.
The game's camera is fixed, but can be rotated using the Right Analog Stick to view the whole area for any tips on solving puzzles, etc.

Drag Yorda around to quickly travel in the game. You can also beckon her to come to you by calling her out.
There is no tutorial in the game, so it would be best if you quickly view at the Options at the Pause menu to quickly learn the game's control. You need to drag Yorda around in order to proceed to another area, because if you left her in another area for too long, shadow monsters will capture her and you have to save her. It would be wise to always bring Yorda around whenever you going somewhere.
The shadow monsters in the game can't kill you, but you can get Game Over if you fall from an extremely high place, Yorda is taken completely by the darkness, and if you turned to a stone. They are not extremely hard to defeat, but requires certain aggressiveness as they always try to capture Yorda if they have the chance. Also, they will try to knock you down in order to get to Yorda faster. Be mindful of the enemies' attacks as well as be aggressive in killing them if you have the chance. There are also no bosses in the game except the final one, as this game is more focused on platforming and puzzle-solving instead of action. There are save points in the game, shaped like benches. Use them to save your progress as there are less than 20 save points in the game.
The game's gameplay is great, but the controls scheme are a bit... old and difficult. Yorda's AI can also be difficult to manage, as she won't respond to your actions correctly at some times. Regardless, the game's gameplay is solid.
Graphics (ICO)

Well-done HD remaster of the game.
ICO has beautiful graphics, especially the environments. The characters also looked great, especially after the HD remake.
Sound (ICO)

Great sound design, effective soundtrack and good voice acting.
The game have minimal soundtrack, but the themes played during certain scenes and parts in the game are great and fitting with the situation. The game have also good voice acting, despite the voice actors speak the game's fictional language.
Replay Value (Ico)

Minimal replay value, if you don't play the game second time to get an extra ending.
Unfortunately, the game has low replay value, as it does not have long playing time and alternative modes to play the game. However, you can try to play the game second time to get an extra ending of the game.