In a word.... no.
Can you improve only playing bullet?

Hi Amy, playing bullet chess will only get you so far. The one thing you surely will improve is your mouse speed.
I know bullet is fun and quick. But from experience it won't help you that much. My bullet rating is 2210, my blitz is 2135, but my standard is only 1742 (my OTB is 1878). So you can see the disparities.
A lot of the games will end in this manner, win or lose: http://www.chess.com/blog/yk333218/playing-one-minute-online-every-moment-counts
The best way is to play a computer. Play with the chess.com computer at 1600 level or 2000 level. And try to think before you move, something we all do less in bullet :D

Amy, what is your otb rating? Aaaaaand no, btw. Everyhting I've heard from stronger players about this is that you get good at slow speed & you will automatically improve in fast time controls. You have to know how to play properly first, then you can play faster.

I don't think bullet will help. It trains one to think superficially and produces bad habits. Bullet is only to be played sparingly.

Bullet chess is better than tactics trainer because it trains you to see tactics quickly, right?
more likely is: you'll see the tactic only after you moved
yes bullet helps because 1) you become better at playing very fast. 2) So you are able to win in blitz even when your low in time 3) u play better players in blitz since u have a higher rating. 4) u get better at chess by learning from these high rated players. so yeah u do.
lol at the question. Like asking If you can get a Ph d in civil engineering by driving down the highway.

She already made up her mind before posting the question....
Fine. Yes, you will become the greatest Grand Master to ever play the game if you only play bullet and under no circumstance play longer time periods. NEVER play a game more than 2 minutes long and you will soon rule all.... lmao

Noted teacher Dan Heisman wrote:
"Play as many long time control games as possible (30+5 or, preferably, slower). Until you are 1700+ FIDE/USCF, avoid intermediate time controls (ten to thirty minutes per game), which may entrench poor/hasty thought process habits. Taking your time in slow time control games is an important step in learning how to analyze moves carefully, comparing various candidate moves to see which offers the best chance. Playing slowly and consistently and analyzing and comparing is a necessary part of improving that skill. You are a better chess player when you learn to chose better moves, so taking your time and learning to consider move options better is about as important a skill as you can practice"
I think your probably right spiritbro, and your analogy is better chess gg.
It reminds me of someone on my friends list who constantly plays blitz frantically trying to improve his rating. I play long games for a while and my blitz rating natuarly tags along. He however is still very weak at long and is what I would call a blitz speacialist. these types never have a plus score against anyone with the understanding that comes from deep thought.
bullet is fun, dont let anyone tell you what to do in your spare time, just dont kid yourself that you are learning how to play long chess.
it will help but only to a extent
let me explain. If you play bullet you can start making smart moves faster against lower level players but when you reach a higher rating bullet becomes a battle of internet and mouse movement speed
i might be wrong but i think your better off playing rapid or even blitz
PS: i say blitz is the best as you have time to think in the start but by the end you need to move fast like in bullet
Can you get better if all you play is bullet chess?