(This is Italy's version of the song, but the same chords apply to other versions.)
(The chords are aligned according to the romaji, not the Japanese characters)
[Intro]
G7
???? PAPA ?????????
Nee nee PAPA WAIN wo choudai
C
???? MAMA ???? MAMA
Nee nee MAMA nee nee MAMA
G7
???????????
Mukashi ni tabeta BORONEEZE no
D Dsus4 D
????????????
Ano aji ga wasurerarenain da
[Verse 1]
G C
???????
Maru kaite chikyuu
D G
???????
Maru kaite chikyuu
G C
???????
Maru kaite chikyuu
D G
?????
Boku Hetalia
G C
???????
Maru kaite chikyuu
D Em
???????
Jitto mite chikyuu
G/B C
????????
Hyotto shite chikyuu
D G
?????
Boku Hetalia
[Chorus]
C G
?? ?????
Aa hitofude de
Am B Em7 D7
??????????
Mieru subarashii sekai
G7 C Bm B/D# Em
??????!
Naga-gutsu de kanpai da
Am D Cm/G G
????
Hetalia!
[Bridge 1]
G7 C G7 Dsus4 D
??~ ?????? ????????????~?
"Ah~ Onaka suita. Ore... PASUTA ga tabetai na~!"
[Verse 2]
G C
???????
Maru kaite chikyuu
D G
???????
Maru kaite chikyuu
G C
???????
Maru kaite chikyuu
D G
?????
Boku Hetalia
G C
???????
Maru kaite chikyuu
D Em
???????
Hatto shite chikyuu
G/B C
?????????
Funzori kaette chikyuu
D G
?????
Boku Hetalia
[Chorus]
C G
?? ?????
Aa hitoyude de
Am B Em7 D7
??? ?????? ?????????!?
Nakeru shiawase no RESHIPI ("Men wa arudente da!")
G7 C Bm B/D# Em
?????????!
Yume no CHAKKU zenkai da
Am D Cm/G G
????
Hetalia!
[Bridge 2]
C G/B
???? FRATELLO ??????
HEIHEI FRATELLO pasuta wo choudai
B Em
???? SORELLA ????????
Tsuide ni SORELLA yude toite kudasai
C G/B
???? NONNO ??????~
OIOI NONNO hewa ga ee wa
Am Dsus4 D
???? BAMBINO ????????????
HAIHAI BAMBINO (Boku no tama deshuka?)
C G/B
???? PAPA ??????
Guigui PAPA WAIN mo choudai
B Em
???? MAMA ???? MAMA
Nee nee MAMA nee nee MAMA
Em7/A A
???????????
Mukashi ni tabeta BORONEEZE no
Dsus4 D
????????????
Ano aji ga wasurerarenain da!
G C
???? ????
Hetalia! Hetalia!
G/D D G
??? ????
Hetare Hetalia!
[Verse 3]
G C
???????
Maru kaite chikyuu
D G
???????
Maru kaite chikyuu
G C
???????
Maru kaite chikyuu
D G
?????
Boku Hetalia
[Chorus]
C G
?? ?????
Aa hitofude de
Am B Em7 D7
??????????
Mieru subarashii sekai
G7 C Bm B/D# Em
??????!
Naga-gutsu de kanpai da
Am D Cm/G G7
????
Hetalia!
C G
?? ????
Aa sekaijuu ni
Am B Em7 D7
?? ??????
Nemuru shiawase no RESHIPI
G7 C Bm B/D# Em
??????
Naga-gutsu de kantan da
Am D Cm/G G
????
Hetalia!