PAC-MAN WORLD Re-PAC is a remake of the first PAC-MAN World, which came out on the PS1. It very much succeeds in bringing the PAC-MAN World formula that I loved to play with plenty of variety across the game. What PAC-MAN World Re-PAC does fall behind in a few areas, namely with animations and controls. Animations are bit more stiff in this version and don't show a lot of personality compared to the original. For the controls, like the animations, they are a bit stiff. This is particularly noticeable with the rollout, which sometimes doesn't go quite as far as needed to cover a gap and bouncing which stops the player in the air for the first few bounces.
PAC-MAN WORLD Re-PAC stays faithful to the original game, making few changes from the original. There is an addition to PAC-MAN's moveset in the form of the flutter, which allows the player to stay in the air a little longer in case a jump comes up just short. It was very intuitive to used, but feels a bit like its only needed because of stiffness in the controls. Faithfulness to the original game also means that the bosses are more or less in-tact. If anything, they are a bit easier than in the original game (especially in the ruins where each pad is now connected). As a result of this, however, the game can feel a bit outdated at points though it still holds up very well.
PAC-MAN WORLD Re-PAC doesn't feature a lot of worlds, but each one is quite unique and comes with a very different boss. You'll traverse carnivals, ruins, space, and more, all of which feature unique gimmicks that keep the game fresh. These were of course already featured in the original PAC-MAN WORLD, but they continued to be refreshing in the remake.
If you were a fan of the original PAC-MAN WORLD, you'll notice that a few of the characters (no Ms. PAC-MAN) were switched out and the voices were removed entirely. It's not necessarily a negative, the game is perfectly fine without them, but it does somewhat impact the game's atmosphere.