Thank you namida and Proxima for answers.
Following your advices, this is what I found for the mentionned tracks by checking videos on YT :
I am E.Z.T. = orig_14-tim10genesis (Genesis)
Lemmings Ark = orig_02-lemming1genesis (Genesis)
Dolly Dimple = ohno_05 (Amiga)
Following your advices, this is what I found for the mentionned tracks by checking videos on YT :
I am E.Z.T. = orig_14-tim10genesis (Genesis)
Lemmings Ark = orig_02-lemming1genesis (Genesis)
Dolly Dimple = ohno_05 (Amiga)