Hello,
1) Pass a parameter like 'ps2' via URL when "PS2" is clicked. By parameter, I mean something like this:
2) Based on what parameter you have passed, query the database (i.e. get all the titles for 'ps2').
3) Create a form and <select> tags, as well as a submit button that will pass another parameter. For instance, if a user has chosen "Final Fantasy 9", then 'ff9', along with the 'ps2', etc. Then get a detail page based on these parameters.
4) As for the database, it depends on what you want to show, but using 'ff9' as an ID (PK), "Final Fantasy 9" as Title, and whatever the contents you want to show as Info seems okay, if all you want to show can/should be stored in one field Info.
5) As for creating the <option> tags within the <select> tags, you can loop the query result.
Sorry I'm not too detailed, but this is the approach I would take, more or less. Hope this gives you some idea.