The argument or discussion has been had many times about what 6 games would you choose for your six slot if you couldn't ever swap games, but let's leave a lot of headroom and make it 20.
Everybody give your top 20. Maybe why you made your choices whether it be nostalgia, gameplay or technicality. I know it's hard to rank your 20 favs in order, so feel free to shoot them out at random. It's fine to list games and their sequels under the same number if they're extremely similar (Puzzle de Pon/R, SamShoV/V Special etc.
So unbuckle your belts and lets see 'em, boys!
My 20 in no particular order:
1. King of Fighters 2003
2. MOTW
3. Samurai Shodown V/Special
4. Pulstar
5. Stakes Winner 1/2
6. Quest of Jongmaster
7. SVC Chaos (hit detection fixed boot)
8. Puzzle Bobble/Bust-A-Move 1/2
9. Money Puzzle Exchanger
10. Twinkle Star Sprites
11. Neo-Geo Cup '98
12. Breakers Revenge
13. Metal Slug 3
14. Neo-Bomberman
15. Ganryu
16. Blazing Star
17. Pochi to Nyaa~
18. Prehistoric Isle 2
19. King of Fighters 99
20. Kizuna Encounter
This was a tough list to make, even with 20 choices there's still more i'd love to list.
For reference, feel free to browse the
MasterList and you'll find it very easy to fill in 20 slots.