Cheat/Tip/Shortcut:
1º Go to SAFARI ZONE and do one step.
2º Save and switch off.
3º Switch on and go out, the guy will say "are you going", say no and go back in.
4º Repeat steps 1, 2 and 3. Keep doing this until the guy says " welcome to SAFARI ZONE..." and say no.
5º Go to the Bicycle thing and go up and down all the time until it says "ding-dong. your Safari time is out" and it will take you to the SAFARI entrance. Go out and you´ll go to the Crazy Island.
All editions [of the game].

Cheat/Tip/Shortcut: Here's a way to get a lot of HP on your Pokémon over L100. First you talk to the guy in VIRIDIAN that asks you stuff, you say no. Then you fly to CINNABAR and swim half water and half land. Catch a Pokémon over L100 and then do the RARE CANDY cheat but no need to go back to VIRIDIAN. Then raise it to level 255, then put it in Bill's PC then take it out again, then the level should be around L125 to 135. Do this cheat again if you want to have more HP on that Pokémon. The down thing is it must be over L100. This cheat should work since it worked for my friend and me.

Cheat/Tip/Shortcut: When I started out with BULBASAUR, and my name was Maximus, I went to VIRIDIAN CITY to talk to the man and then went to CINNABAR ISLAND and went up and down the coast, I found a level 180 CHARMELEON and a Level 160 Missingno whose appearance was of the bones of AERODACTYL. It was weird but I hope it helps.

Cheat/Tip/Shortcut: I was playing red when I used this code and I got SNORLAX at level 141, GOLBAT at level 128, and MISSINGNO at level 146. My starting Pokémon was CHARMANDER and the name I used was Ash which is 3 letters long.

Cheat/Tip/Shortcut: I can confirm the sayings [#2052] about MEW in the place where you can get EEVEE except you go in the front door and you can get MEW on the third floor from the guy who stands next to a computer after you get all 150 Pokémon. Hopes this helps!

Cheat/Tip/Shortcut: I have tried cheat #2015. It does work. It never fails.

Cheat/Tip/Shortcut: This is a variation of the MISSINGNO Cheat. I'll explain it as best I can. First put an ULTRA BALL in the sixth slot. Then fly to CINNABAR ISLAND, and TRADE a Pokémon. Then SURF where it's half water, half land. Then defeat MISSINGNO. Check your items, and you'll notice something different about the item that you put in the sixth slot: where it tells you how many of the item you have, there is a zero next to it (although you can still use the item) and a little flower that moves around. Stop SURFing. Go to the Pokémart in CINNABAR ISLAND. When the man asks you if you would like to buy or sell something, select sell. Then sell your ULTRA BALL, you know, the one with the graphic next to it, until it reaches zero again. Repeat this until the ULTRA BALL can't be seen in your item list. You should have tons of money!