I'm not saying it's really bad, just plain bad. And I'm not even comparing it to the Teenage Mutant Ninja Turtles, of which this is one of the many ripoffs made in the 90's.
The continuity is really sketchy - I mean restoring status quo is/was a popular thing to do in these cartoons, but considering the series kind of established itself as continuity actually mattering at all early on, it's really jarring when Piranoid finally gets arrested with the President of all characters giving a full expose on his activities, and he's shown trying to escape from prison at the end...and then in the next episode, he's hosting some trade symposium as if nothing had happened.
And the animation is really bad, with the framerate frequently dropping way below the television animation standard of 12 frames a second, leading to characters moving in a very choppy manner, and the characters' body parts occasionally miscolored or left uncolored entirely, like Ripster's jaw disappearing in one frame but the outlines are still there (and considering the low framerate, all the errors are very easy to spot). The show does a lousy job at conveying action on-screen sometimes, making it confusing to figure out what exactly is going on - such as when Piranoid is about to crash the van he's driving in, he's shown screaming, and it cuts to a backdrop painting which doesn't give you a faintest idea about what he's supposed to be crashing into...and then it cuts back to him, screaming again, and a brief pause, and he screams AGAIN as if to inhale between screaming, all before finally actually crashing, it's like the steam roller scene from Austin Powers except I'm not entirely convinced they did it deliberately since it's the kind of meta humor the series rarely dwells in.
And don't get me started on the weird montages that replace action scenes where they just play clips in split screen not only from earlier in the episode but even after the montage, while some second-rate song plays in the background - and once the montage is over, it rarely has made any difference, clearly existing only to pad out the episodes.