Spanish World Collection Pikachu has a typo in the illustrator text, I guess you could argue that there is a “correct” version given the non-world collection printing was correct, but they never corrected the illustrator mispelling on the world collection version to my knowledge.
It usually specifies with the energy symbol for these attack costs, here’s a corrected french one for comparison. I see what you mean though, it’s ambiguous!
Metal Energy (Neo Genesis 19/111) did not have its set symbol filled in for each international language release, in either edition. It was filled in Japanese, though. This is the only card in Neo Genesis across English, French, German, Spanish and Italian (that I could find) which sports this error.