Get all 150 Pokemon as you progress the game
Ok maybe not ALL 150 (I got at least 140) but this cheat can make you encounter Pokemon from the other game (Like Magmar from Pokemon Blue on Pokemon Red!) So just do the simple Mew Glitch on another trainer besides the youngster and the swimmer and you can get other great Pokemon like:
And since they will be level 7 they will be easy to catch (level 7 Chansey can even be caught with a simple Pokeball!)
But beware: Missingno. Can be encountered as well!
The second part is getting Tauros and Kangaskhan:
Go to safari zone and go to the area where you can get kangaskhan (The area after the main area) and drain your time (walk 500 steps). As soon as you exit the safari zone, fly to cinnabar island and surf on the right edge of the island.The safari Pokemon you will encounter depends on how rare they are and which area you were taken away from. Kangaskhan and tauros will appear soon. Just be patient.
Added by: Guest May 2nd 2012, ID#5409