@satoushigeki
Eto..., this consider as the "Addin" for the song already, since it's not contain in the offical lyrics section, think it's better not to add them in!
(PS) after hearing the addin again, some of the lines and not really the same as what you've posted by the way~
Specially the 3rd line and the 5th line... ^^'

(PPS) thanks to gurung for editing one of the words in the Romaji section!
The correct word is "ICHIGO" but I accidentily type it as "ICHIKO" instead!
Thank you very much for correcting it! ^^

@nicjmartin

I know what was intended with the hyphens, but I really don't see why they've been put there.
There's nothing in the English language to say a hyphen is a long vowel.
The Japanese long vowel character, ー, is not a hyphen.
In other words: Where you have long vowels, use long vowels. The Romaji lyrics are meant to be as readable as possible.

Also: http://gendou.com/help.php?filter=punctuation

The hyphen just marks the continuation of the last vowel, making the sound slightly longer.

Having the kana pronunciation is fine, but how does one pronounce a hyphen?

The Romaji I've posted are all base on the offical kanji lyrics from the site:
http://www.kasi-time.com/item-41059.html
The words are all base on how the Kanji was pronouce, like IEI IEI, DONMAI...ETC
(Translated to English became "Yeah Yeah", "Don't mind"...etc)
But I kept the word as it is, so hope that nobody changes it too! ^^

Check the Romaji with the songs already and it's totally correct now except for the addins heard in the song, I didn't add it into the lyrics since it's not offical~!