How are Japanese loanwords spelt and pronounced? Are they spelt the same way that they'd be spelt in English, and are they pronounced the same way they'd be pronounced in English or Japanese? For example, how are words with the syllable "ge" or "gi" in English and Japanese (げ/ゲ or ぎ/ギ to use Japanese hiragana or katakana) spelt and pronounced?
I suspect that in English, recent loanwords are more faithful to the original Japanese than older loanwords, so I'm especially interested in recent loanwords to Spanish.
I tried looking at Categoría:ES:Palabras de origen japonés in the Spanish edition of Wiktionary and also Idioma japonés in the Spanish edition of Wikipedia, but there didn't seem to be any information in Wikipedia about Japanese loanwords in Spanish, and Wiktionary only listed a handful of Japanese loanwords.
More general question: Do any Spanish words exist that aren't pronounced as expected from their spelling?