Savage C64 is silky smooth with big sprites, nice animations and a good soundtrack. Gameplay-wise aren't big differences to the CPC version. Well, less colorful. But not that colorless you mostly see in wrongly configured C64 emulators for the youtube clips. The C64 colors aren't that pale. They simply use a wrong color palette.
Well, still a lame action game. Nothing that i would mention if you ask me for good 8bit Arcade games. Just like Trantor.