Evgeny has laid out his unfinished game hack New Ghostbusters II - 2 players, which, like the previously published hack from ZURG, allows play for two players/controllers. (In the original, it is only possible to play one). This hack is still in development, so there are bugs and shortcomings in it, which the author plans to fix.
New Ghostbusters II (U) (Prototype).nes
MD5 Checksum: 0E02DAC397ADA8E01C8B8BA348DF580B
SHA-1 Checksum: 5396D7475AF1B5E85016980B909ADB0B82846A89
SHA-256 Checksum: FCE1B91E3BC5569CE330A5A1DF19AF637910BA9A3A6029333AAA17AF423B012E
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New Ghostbusters II (Europe).nes
MD5 Checksum: 8009CDF7EF0E79251388C1DDCB2DD506
SHA-1 Checksum: 1E1CCA1663ACA0DD0D3372E842EAAC8FCD245802
SHA-256 Checksum: C2E05CA6D4ADDBB26AE01126BDD72ABA413A7E9601D548077B9A449564C527A7
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New Ghostbusters II (Japan).nes
MD5 Checksum: 49E5A99A6C781C1F12118D45352E7881
SHA-1 Checksum: 6CA979CA67E73ABDFE52F9DCE1960BF0F49813C3
SHA-256 Checksum: 13A399A84F7EE6B0C850465B79B537875AEA2BB107A27DFA731F634B3EF0894F