I wanted a site that lets me track my entire collection in one place to figure out and plan what I want to play next and learn the details of a game not in the database yet.
The main reason why I added them is because I would like to browse through games in my collection quickly without turning my self into a DJ I just want to log on, look for a game in my collection then see it and decide if I want to play it.
These points are what really stood out to me. I think if you are looking to breakdown a compilation game into its different components like this, I would highly recommend Backloggery.com. If you open up the detailed mode when adding games, can add all the games in a compilation individually, then designate it as part of a set, which then creates a drop down that has each game nested under the main title. You can then add notes about the year it came out within each individual entry. Backloggery also tracks what games you have and haven't beaten yet.
I started one to show you how it looks
Unfortunately VGC is not optimized to breakdown the individual pieces of a compilation for the purposes of showing the information about each individual game, which ones you have beaten, etc. Personally, I agree that this feature could be nice/useful, and I see where you're coming from with that. But adding each game as a separate listing isn't the right way of doing it in the context of the site. Adding the game as a separate entry is saying that it was released entirely
on it's own, as a separate release, not in a compilation, which wouldn't be accurate.
So like lets say I wanted to buy/own in my hands Metal Slug 4 in North America on the PS2, I could either buy Metal Slug 4&5 (
https://vgcollect.com/item/1690), or Metal Slug Anthology (
https://vgcollect.com/item/15731). But adding a separate entry for Metal Slug 4 would not be right, because the game was never released as a separate game; it's always tied in within a compilation in North America. But that's the message that adding each game individually is saying.