on the left, a table with all A-Z standard letters in one of splatoon's scripts
on the right, 3 rows with extra glyphs.
first row features letters commonly found in dutch: the ij (looking like a literal merge of splatoon's i and j), the ë (splatoon's e with 2 dots above) and é (splatoon's e with an acute mark)
second row is letters commonly found in polish: ą (splatoon's a with an acute mark underneath), ł (splatoon's L with horizontal line in middle), ć (splatoon's c with a horizontal line above, ź (splatoon's z with a horizontal line above) and ż (splatoon's z with a dot above)
third row is letters commonly found in german: a umlaut (splatoon's a with two dots above), u umlaut (splatoon's u with 2 dots above), o umlaut (splatoon's o with 2 dots above, and ß (splatoon's s, but duplicated and offset a bit to right)