Just as awful as I had anticipated. With that said, it's nothing so bad that it offended me - it's simply totally and utterly bad, to the point I kinda find it hard to hate on it because I just don't have any thoughts on it. It is, without question, undoubtedly worse than 1994's 'The Mask' in every conceivable way though.
Jamie Kennedy's version of this Dark Horse Comics character is truly dreadful, especially visually, though thankfully the film doesn't actually give that much air time to Kennedy as The Mask; like, he's there but it's predominantly the dog and the son that get much of the screen time alongside Alan Cumming's Loki - to slightly better effect too, the way the kid is animated kinda nearly works... it doesn't, but almost.
Ryan Reynolds, according to Kennedy himself, possibly wanted this role. It's lucky Reynolds didn't get his way, or he'd be stuck with a green ghoul in his past. Oh, wait!
4/10 is probably generous on my part, though there are far worse films out there that actually annoy me - 'Son of the Mask' honestly doesn't. It kinda just exists and I'm almost nonplussed about it.