Pac-Man Collection is a compilation of 4 Pac-Man Games, which was first released in 2001. These included Pac-Man, Pac-Attack, Pac-Mania and Pac-Man Arrangement. I found a ROM of this online and played it on the VBA GX emulator.
The original Pac-Man has two ways you can view the game: Normal view, where you can see the whole maze and Scroll, which has a camera that follows Pac-Man when he moves. I recommend the Scroll view because the Normal view has somewhat poor graphics. Other than that, I like this port, even though the graphics aren't that good.
Pac-Mania is a pseudo-3D version of Pac-Man, which adds different environments, the ability to jump to avoid ghosts and more ghosts, including ones that can jump as well. I like this game because it takes the original Pac-Man formula and add to it. On the other hand, I feel like the game is easier because of the jump button. but I can change the settings in the pause menu so that's good.
The third game in the collection is Pac-Attack. This game is basically Tetris with a twist. The difference in this game is that you can line up ghosts and when the Pac-Man block comes up, you can eat all the ghosts within a certain area. There is normal mode and puzzle mode, which requires you to go through 100 stages. I like this game because it has the Tetris-like gameplay and it adds some Pac-Man elements to it.
The fourth and final game in the collection is Pac-Man Arrangement. This is basically the original Pac-Man, but with a lot of features added to it. These features include: different worlds, boss battles, more ghosts and items to help you avoid the ghosts. This game is by far my favorite game in the collection, because it adds a lot of features to the original game and makes it the best experience I have had in a Pac-Man game.
Despite the somewhat poor graphics and the lack of a save feature, this is one of the best collections I have ever played. If you wanna get this game, it is available online, via Wii U E-Shop and you can get a ROM of it.