There is a last level in the original version of Pac-Man. It is somewhat after the banana board (you can tell what board your on by looking at the fruits on the bottom of the screen). It is pretty hard to get there, so take your time.

Hope this helped!
Koolstr

Eacxh four ghosts, when it crosses the mystery ghost, will, basically, evolve. Each one evolves differently with different powers:

Red-Super boost: Can dash across the screen. He only dashes when you are on the same line as him, either across, or in a row.

Pink-Teleport: Can teleport all over the stage. It only teleports when you either stop, or rapidly switch direction.

Orange-Builder: Can build any more pacman pieces (those little round balls that Pacman eats up) whenver it wants. WHENEVER. You can tell if those were made by it if they are fatter.

Blue-Multiply: Can multiply into 2 ghosts whenever it wants. Once again, WHENEVER. It is basically a mirror reflection, sowhatever direction he goes in on one side, the reflection does the same, like a mirror.

Hope this helps!
Koolstr

Requirments-2 gameboy advances, and 2 of the new games(ruby & saphire)this works on all games so dont worry if you only have Saphire.

Alright 2 of the Pokemon you choose in this will have boosted exp. Ok now do all the normal proceduresto get started and then when you go to Odale for the second time go to the trade center and trade the Pokemon you got. Now restart your game, choose a different starter and trade it too.

Now this time just start normal but catch 2 Pokemon you could care less for(maybe 2 Wurmples). Trade them to the other game for the 2 starters and boom boom boom you have three starters if you want all three starters to have boosted exp. trade the third starter you choose then restart your game, catch 3 Pokemon, trade them.
But be precautios these will grow fast thus may overgrow and they won't obey. Hope this helps.
the master...
shane brown