Retro Games worth to buy?

If you know other Games that are truly RARE, please post!

J = japanisch, U = amerikanisch, E = Europäisch
Blazing Star (NeoGeo) J - 1000$
Shining Force 3 (Saturn) U - 100$
Shining Force 3 (Saturn) E - 100$
Radiant Silvergun (Saturn) J - 200$ (Predecessor of Ikaruga)
Comix Zone (MegaDrive) J - 150$ (German Version for only 3€)
Alien Soldier (MegaDrive) JUE - 70$
Phantasy Star (MegaDrive) J - 80$
Metal Slug (NeoGeo) J - 700$
Metal Slug 2 (NeoGeo) J - 400$
Panzer Dragoon Saga (Saturn) U - 170$
Psychic Killer Taromaru (Saturn) J - 300$
Sonic the Hedgehog (MasterSystem) U - 200$
Congo Bongo (Intellivision) U - 300$
StarFox: Super Weekend/Donkey Kong Country Competition Cartidge (SNES) U - 300$
Magical Chase (TurboGrafx 16) U - 200$
Myriad 6 in 1 (NES) U - 300$
Bounty Bob Strikes Back! (Atari 5200) U - 500$
Mine Storm/Mine Storm II (Vectrex) U - 500$
Bubble Bath Babes (NES) U - 500$
Atlantis II (Atari 2600) U - 1200$
Air Raid (Atari 2600) U - 3500$
Bangai-O Prize Edition (DC) J - ??????$ (Tournament win, Copies Produced: 5)
Pepsi Invaders (Atari 2600$) U - 1200$ (Copies Produced: 120)
1990 Nintendo World Championships: Tournament Cartridge (NES) U - 4000$ (Copies Produced: 90)
1990 Nintendo World Championships: Gold Edition (NES) U - 9000$ (Copies Produced: 26)
Stadium Events (NES: NTSC-U) (Copies Produced: 2000) - $1000+
Kizuna Encounter (NeoGeo) E - 13000$ (Copies Produced: 8)

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