The essentials of earlier eras, games that reinvent the conventions of the medium, and hidden gems.

Grouping respectively:
Page 1: Adventure / Action-Adventure, Surreal / Quirky / Hand-Crafted
Page 2: Puzzle, Sports / Racing / Flight, Console Mascots / Platformers
Page 3: Classicvania / Metroidvania, JRPG
Page 4: WRPG, FPS / Third-Person Shooter, Horror
Page 5: Hack and Slash / Fighting, Action / SHMUP / Rail Shooter, Rhythm, Arcade / Text-Based, Strategy
Page 6: Simulation / Exploration, Visual Novel / FMV, Audio Game / Voice Recognition, AR / VR