Yes. There are many hints through out the seasons but the first clues start as early as in the movie. In the original movie Cindy and Jimmy have an awkward moment where they stare at each other when they are flying into space to rescue their parents. Jimmy realizes what he is doing and looks away in disgust and Cindy looks scorned. There are quite a few moments where they make eye contact and stare at each other in the series as well. This are subtle but the interest was clearly there. It most evident in Season 3, more specifically "Stranded", "King of Mars", and "Lady Sings the News"
Note: The two end up kissing at the end of "Lady Sings the News."
It was his love of Cindy that made him agree to go to the home of his mortal enemy Eustace Styrch. He only agreed after Cindy remarked she liked Eustace and it was out of jealousy that he tagged along. This later led him to entering Goddard in a battle with a robot adaptoid. The bet was that if Goddard lost he would belong to to Eustace in the episode "Billionaire boy." He was refusing to bet him until Cindy teased him. She reluctantly mocked him for being chicken when encouraged by Eustace which resulted in Jimmy immediately agreeing to the wager.
On another note the fact that Jimmy goes out of his way to get back at Cindy and attempts to make inventions to prove her wrong is due to his infatuation with her. She is the main highlight of his day. Many of his adventures would never have happened if she wasn't in his life. She even brings that up in Win Lose and Kaboom with the contract she wants Jimmy to sign. It clearly states on it in the 2nd paragraph "I Jimmy Neutron also agree to do my best to see things her way and not to create crazy inventions to prove her wrong that other wise may turn the town upside down and create the disturbances they have in the past."
jimmy and Cindy do not get together but they almost do. To be more specific if you watch the episode Lady Sings the News they are basically a couple by the end. It never may not officially say that they were a couple but he kisses her and they walk off holding hands as the credits start rolling. Somethings just don't need to be said.
P.S.
That was the last official episode of the series. The director stated that the Jimmy Timmy power hours were not part of the cannon so they don't count as far as Jimmy and Cindy's relationship in the cannon is concerned. Also it was stated at some point that Jimmy and Cindy were meant for each other. She was intended to be his wife. If you research the old interviews you'll find that info.
They kiss in episode 16 and episode 33
they dont actually kiss but in episode 4 its like a kiss he has to kiss her to get medicine in her mouth and in episode 8 he kisses her on the nose and episode 24 he kisses her on the neck
There is no first episode that Naruto and Hinata kiss because they don't kiss.
No, there is not a 26th episode of Itazura Na Kiss.
they kiss in the episode called desperately seeking bloom. It is seanson 2 episode 24
no jimmy doesnt like Cindy he likes ava. Who knows why but he does. He also liked her in 4th grade. But he is a chimpmunk so concluding that no one likes jimmy because he's a chipmunk. haha stupid chipmunk..............
the prototype
Sorry kid but Jimmy & Heloise do not kiss in season one or two so far. They come close in Heloise's Secret Admirer. Maybe in Season three they will kiss JimmyxHeloise 4ever
Rachel and Finn kissed 3-4 times in Season 1 and only once in Season 2. Their first kiss (In Season 2) was toward the ending episode of "Audition"
They kiss in episode 16 and episode 33
they kiss in episode 78, and 22
They kiss in the final episode.
i think its in episode 9
As far as the series is up to in the US no. It is possible they will hook up but it is highly unlikely at the point of where the episodes are JimmyxHeloise 4ever
they dont actually kiss but in episode 4 its like a kiss he has to kiss her to get medicine in her mouth and in episode 8 he kisses her on the nose and episode 24 he kisses her on the neck
There is no first episode that Naruto and Hinata kiss because they don't kiss.
All the couples kiss in the final Naruto episode. They declare for each other and kiss. This happens in the final episode.