Here's more about the four basic views toward emulator saving:
The
paranoid saver is someone who often actually uses the one-button save and load
buttons as controls. For example, this person would, when playing, have his
fingers on F5, F7, the A button, the B button, Select, Start, and the arrows,
actually incorporating the save and load buttons as part of the controls. He
usually hits the save button every two seconds or so. If he dies, he reflexively
hits F7 and keeps on playing without flinching. This is the type of person who
wants only to beat the game and doesn’t care about actually playing the game
through or getting good at the game.
The
frequent saver is someone who plays, hitting the save button every five or ten
seconds or so, but keeps his hands on the normal controls. Every so often (such
as five/ten seconds, as said before) this player will move his hand up
reflexively to the save button and hit it. If he dies, he also hits F7 and keeps
on playing. This is the type of person who sort of wants to beat the game and
sort of wants to play the game as it is and get good at it, too.
The
occasional saver is someone who finds saving a nuisance, and therefore only
saves maybe every minute or so, or if some landmark is achieved. In BC, for
example, he might save whenever he enters a door or beats a level. For this kind
of person, saving is cheating if abused, and wants to actually play the game
through to a degree, and wants to get good at it as well. This kind of person is
often someone who actually played the game on the original system, and wants to
relive old days.
The
abstainer regards any saving as cheating, because in the real game you
couldn’t have done so. Therefore, this type of person is essentially playing
the original system (e.g., the NES, SNES, etc.) on his computer without any
extra benefits. This kind of person is also often someone who actually played
the game on the original system, and wants to relive old days.
Which
of these techniques is the “best”? It depends. If you’re only playing to
beat the game, you might as well be a paranoid saver. In terms of building
skills and getting through the game at the same time, frequent saving is
excellent. If you have a grasp of the game and are working on skill at that
game, occasional saving is excellent. Abstaining is good if you’re a fan of
the original game and/or are a master of the game. It's really up to you.
I could write another page about using A+B+Start. However, it is part of the original game, so you can guiltlessly use these three keys right before you're going to die. This is sort of cheap, though. It's a lot like using the save and load functions; you can prevent dying. This is also for you to decide. However, in any case, you should use this no matter what in some cases; if you're low on lives, for instance.
ANYWAY, you may also want to check out all of the stuff at Bionic Commando Headquarters.