The four versions of Frogger (unlicensed) that are in the WOS archive, where all produced by companies that have either folded, or have given their permission.
But I think that WOS may be on thin-ice with Pac-Man, Ms-Pacman and Donkey Kong
Donkey Kong produced by Ocean now Infogrammes, an IDSA member.
Pac-Man produced by Atarisoft now Infogrammes, and licensed from Namco, both IDSA members.
Ms. Pac-Man same as above
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The four versions of Frogger (unlicensed) that are in the WOS archive, where all produced by companies that have either folded, or have given their permission. But I think that WOS may be on thin-ice with Pac-Man, Ms-Pacman and Donkey Kong Donkey Kong produced by Ocean now Infogrammes, an IDSA member. Pac-Man produced by Atarisoft now Infogrammes, and licensed from Namco, both IDSA members. Ms. Pac-Man same as above