Oh boy... I've played some pretty bad games.
Now this one isn't technically the -worst- I've ever played, but it's the game I hated my time with it the most.
I was a dumb kid and got this game with my own money, which I never got allowance or anything like that and had to do work for others to get money since my parents never gave me a dime. Anyway, I bought this game, I don't remember why. Even at the time I got it, where I must've been only 11-13 years old, I hated it.
There's a literal garbage mechanic where you have to pick up garbage to get access to minigames, you go around a fixed camera angle (with REALLY drawn out angles making it hard to spot your character among crowds) looking for garbage, which is tiny, and then to throw it away. Do enough and you can get a fast pass for something so you don't have to deal with long lines of people blocking access to games. This mechanic is just not fun.
Several of the minigames are rather broken or just not fun, and sometimes game gets to the point of frustrating. Some of the 'minigames' aren't even games, like one is just a cutscene from different angles and another you literally cannot lose (but on the flipside some are so infuriatingly difficult, it's just... GUUUUUH.)
The worst is a goddamn quiz sequence where you need to answer I think 10-20 questions correctly without getting three wrong, they're on a timer and they're WAY too hard, there's a large array of questions and many of them go into various movie's development cycles. I don't fucking know what happened on the set of Water World or remember what the cameo title of a book was in some scene of E.T.. And everytime you get it wrong, the Woodpecker just taunts at you, "You need to watch more movies!" Over and over again. And you can't progress in the game until you beat this, and you're only give 15-20 seconds for each question so you have no time to search it up online.
But that wasn't close to all that was wrong with the game, from shitty graphics to filler content and and...
I was probably more sour on it because I spent money on it at a time I barely had any to spend on games as a kid, but it's stuck with me. I know I've played worse games, but this one was my least favorite gaming experience.