Here are the changes I've found in the characters and some new characters I've translated the name of. Notice that some characters may have the S word in their name, I'm not being rude, they actually have the character for 'shi' and the character for 'tsu/t' straight after it!
-Mametchi has a tail.
-Kuchipatchi has a horn.
-Memetchi has wings.
-There's a new character called 'Horoyotchi'.
-There's a new character called 'Matsuritchi' (or 'Matsuitchi', I'm not so sure).
-There's a new character called 'Burimatchi' (or 'Buimatchi', I'm not so sure).
-Furawatchi has hearts coming out of the top of its head.
-There's another new character, to my understanding it's 'Tenzotchi' but I'm not so sure.
-Yet another new character called 'Tsutkomitchi'.
-A new character called 'Shitekitchi'.
-A new character but I can't read the second character of its name. Right next to Shitekitchi in the character thing.
-A new character called 'Yasaguretchi' to my understanding.
-Another new character that I can't read its name.
-A new character called 'Tougiyutchi'. Or maybe 'Tougyutchi'.
-Marotchi has some accessory on its head and its ears are more solid.
-Togetchi has a different coloured hat and wings.
-Yangu (Young) Mametchi has a tail.
-Another guy after Yangu/Young Mametchi, I can't read the name.
-A new character called 'Kuratkatchi'.
-A new character that I believe is called 'Zokiyukotchi' or 'Zokyuktchi'.
-A new character called 'Serebutchi'... I think...
-A new character called 'Yangu (Young) Furawatchi'.
-A new character called 'Daiyatchi'.
-Yangu (Young) Memetchi has wings.
-Yattatchi has horns.
-A new character called 'Kometchi'.
-A new character I believe is called 'Pokusatchi'.
-A new character called 'Yakantchi'.
-A new character called 'Yangu (Young) Yattatchi'.
-Debatchi has hair and a horn.
-A new character called 'Shitbotchi'.
-A new character called 'Shitpokotchi'.
-A new character called 'Hanaotchi'.
-A new character called 'Hanabotchi'.
-A new character called 'Tsunootchi'.
-A new character called 'Tsunokotchi'.
-A new character called 'Hiyottokotchi'.
-A new character called 'Hanagatatchi'.
-A final new character, again I don't know its name.
Sorry if the translations for the new characters aren't good, I'm teaching myself Japanese by looking at my friend's Japanese file... lol...