There are alot more glitches in 1st generation then Missingno. It's probably why I got a game genie lol (my first portable console was a gameboy advance with pokemon yellow)
Sometimes I forget that graphing calculators can do things like that.
Pokemon Blue is a very broken game, and new glitches in the first two generations are still being found! There are many more wonderful ways to destroy a game than summoning a harmless pocket of placeholders, even without outside programs. ^_^