Riff the Clone, also known as M-33 HN-5, has appeared in 3 comics from Epix since 1987. The most recent cataloged appearance dates to 1988. Most cataloged appearances come from Tung Metall.
Epix
50 issues
Tung Metall (1986)
Mar 01, 1988
Jan 01, 1988
Dec 01, 1987
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