The product is part of Konami's "Anniversary Collection" series, celebrating the company's 50th anniversary, with the other two compilations being Anniversary Collection Arcade Classics and Castlevania Anniversary Collection.
All games in the collection have been announced to be enhanced with modern features.
The package also includes a 74 pages bonus eBook packed with new information about the titles, including interviews with the development staff, behind-the-scenes insights, and sketches and design documents never before revealed to the public.
In a free patch to be released shortly after launch, players will receive the original Japanese versions of selected titles, plus Japanese scans from the bonus eBook.
The compilation includes ten titles overall: five selected classic titles from the Contra series, as well as a combination of five ports and different localizations of four of them (the latter mainly being their European "Probotector" counterparts):
- Contra (Famicom)
- Contra: Hard Corps (Genesis)
- Probotector (Mega Drive)
- Operation C (Game Boy)