1. No bugs, glitches, or crashing.

2. Good art direction and color theory.

3. Tight, responsive controls. Even Out of this World, Flashback, and Oddworld's grid-based movement was responsive.

4. Decent graphics or better.

5. Good sound effects and music.

6. Appropriate pacing.

7. A decent story or better.

8. Both physical and digital releases. (Yes, I'm including cart and CD.)

9. Addicting gameplay and just plain fun.