2. i heard a rumor about a certain timing to press the a button when throwing a pokeball and it will always capture no matter what type of ball.
Ah, the infamous catch rate improvement 'cheats'.
I don't know if these have been discussed at all on the 22 pages of this long topic, but I'll list some of the battle glitches in RBY I know of, since n one seems to be talking about them at the moment.
1. There's a 1/256 chance of 100% accuracy moves missing without accuracy being lowered.
2. If a Pokemon has exactly 255 or 511 HP below its maximum, their recovery moves fail.
3. If a Pokemon is fully paralyzed or hit by confusion while underground or in the air from Dig or Fly, it will stay in the safe position, but any move will be allowed to be used. The only way to be removed from the safe position is to use Dig or Fly again or switch. Since back in Gen I Earthquake, Gust and Thunder couldn't effect Pokemon in safe positions, the
only thing the opponent can do to you is Swift, Bide or Transform. Making you almost invincible.
4. Lots and lots of glitches associated with Substitute.
5. If Toxic and Leech Seed are used at the same time, each turn of Toxic and Leech Seed will increase Toxic and Leech Seed's power by 1/16, instead of just for Toxic. Meaning: first Toxic does 1/16, first Leech Seed does 2/16, second Toxic does 3/16, second Leech Seed does 4/16, etc.
6. If a Pokemon is on the turn it is suppose to recharge from Hyper Beam, it gets frozen. Then if it gets unfrozen by Haze, it will no longer be able to do anything again.