There are a lot more blatent rip-offs than crazyparty. The ulicened harry potter, pokemon games that actually use the pokemon characters without permission from Nintendo, the squaresoft games, and admittedly a ton of MUDs are much more blatent thefts.
Also, I stopped playing Crazyparty for a long time because of its copyright infringement. I particularly dislike that the game says "reminiscent of games from the past" when some are direct rips and are a bit more than reminiscent.
If the game was paid, there would be absolutely no excuse for it at all and any games that use stolen assets or stolen intellectual properties such as the harry potter concepts and stuff should be banned.
Also, even though I like CP, I think I'd like it better with original sounds.
Also, many of us are complaining of the copyright infringement even if we like it so the previous accusation is not totally apt. Also. CP also uses incredible ingenuity to make its gameplay. The cards game uses the pokemon types, which is a point against it in how it works, and some of the computer bots are pretty thinly-veiled pokemon too, another point against it. However, pokemon, either in the card game or the video games does not match its gameplay style, which is actually quite unique.
The mini-games are a mixed bag. Many of them have visual equivelents in marioparty games, quite a few do not. Even with the Marioparty ones that are very similar, the adaptation to an audio format is ingenius enough that I consider them their own thing.
Again the copyrighted music and sound effects can and should be held against the game, but calling it a blatent rip-off ignores the significant amount of uique gameplay the game actually has in it.
when I explain CP to friends I say, "The gameplay is original, the soundtrack most definitely is not.)
The game however, never directly uses Mario characters in actual name or those of pokemon or other characters from major video game franchises, which is more than can be said of many other titles available.
Should CP be blamed for it's copyright infringement. Yes and absolutely! Should it be praised for its unique and refreshing gameplay? also yes.