Yes, all the time but only if its a hard game or just for the fun of it.

no never.

I don't cheat but I will use a faq or online guide (ign do some good ones) if I'm stuck at a game for a long period of time and it just isn't fun to do it.

Well, I don't really consider walkthroughs to be cheating, so I'll say no. I use them as a last resort only though, or after beating the game once to be able to get 100%. One exception though. I used them in Kingdom hearts to rescue all the lost dalmatian puppies, but then I didn't finish the game once I had them all. I couldn't bear to think of missing some and have them be sealed in a dark treasure chest.

I will only cheat on a game if i am really really stuck for a long time on a spot, but then i wont use invincibility or anything i might just check on youtube how its done. Also when i complete certain games like Viewtiful Joe i watched some videos of it to get tactics for my replay but i wouldnt do that on the first play through.

The only other cheats i think that are worth using are ones that unlock extra game options 10 Stars in SF2 Turbo, things like that which add to the experience rather than make it easier in any way.

Currently cheating (watching vid's on youtube) on SSBB Target smash to get tips for better times ^^

i use walkthroughs sometimes but that really not cheating

Yeah when I'm stuck, really stuck, I just go to gamefaqs.com too.

yes but only the event pokemons like Darkrai, Shaymin and Arceus in my pokemon pearl.

The only game I've ever cheated in is Pokemon, with the Missingno thing.

I would never do it in a multiplayer game--people who do should burn in hell. Of course, it is always fun when I still beat them

Yep.  My philosophy:

1st playthrough:  No cheating.  No walkthrough unless I'm very very sure I will not replay the game.

2nd+ playthrough:  Gloves come off.  I do whatever I like/can as long as it's fun.