Pokemon Red,Blue and Yellow have 151 real pokemon, Around 15 Missingnos and 10 Glitch Pokemon and 50 trainers (estimates only)
So what happens if you start with a trainer you get real cool glitch!
First use the start with any pokemon code: : 01??1ED1 I know that EE FF B6 00 FE E2 give glitches for more info got to team
rocket's rockin's hex list