(Forums so slow, by the time the page loaded up it logged me out! Had to log back in again.)
While Sonic has always had an attitude they may make him come off as snarky and impatient at times he was never the sort to come off as rude to others. And that whenever he is aware there are others upset or in tears then his more compassionate side will show where he will listen to what's upsetting them and will do what he can to help them, wanting others just to be as happy and as easy as he got it in life.
While
Sonic Colours Sonic is still willing to save the wisps, it feels he's doing it more for the glory and for the thrill of it... I mean yeah, that's a quality I like about him but it's not something Sonic prioritizes in when it comes to crisis. He knows he can do this, he has confidence but that doesn't mean he should be an arrogant prick about it. He's like those obnoxious YouTubers, the sort that have made millions off YouTube and use that money to go places, buy fancy things and ostupid stuff because the personality they developed for their adult life consist of "likes and subscribes".
To sum it up, here is a comparison between the most memorable cutscene in Unleashed with the most memorable cutscene in Colours.
https://www.youtube.com/watch?v=07g3hbFIJIYhttps://www.youtube.com/watch?v=j1DenmbPcHsPractically a far cry from one another.