gijitsu no oto
Chink-A-Rama
アンジェリーン - Anjeriin, would work. or アンジェリーネ - Anjeriine, if you sound the last e out when you say your name.
Watashi wa anata ga inakute sabishii.
Bukimi na oto
If that is a name it would be Japanized as マイケーラ /mai keera/.[ee = enlongated 'e' sound like in emblem].
ジョー /joo/ is Japanese term for that name.[oo = elongated 'o' sound]
If you mean "_________ is Japanese," you would say, _______ es Japonés.
"You are a" would be "anata wa" in Japanese.
The Japanese do not celebrate 'our' Halloween. The have their own called o-ban. If you want to write it you would use katakana (they use this writing system for foriern words) and it would be this: ハロウィーン. If you want to say Halloween in Japanese (Nihongo), you'd just have to adapt to their sounds. So you would say : HaROwiin (wiin as in lean sound wise).
If you are saying "I am happy," you would use ureshii, or if you are saying happiness, you would say "shiawase"
hikooki (he-koh-key, long oh sound)
マギー /ma gii/ with elongated 'ee' sound.