the first version, the main melody of electric guitar with a little light rock flavor:? Starting with underwater (the main body of the ocean), it feels very new and "fresh", with a lot of free play in the middle, and a little sloppy in the back, giving people the feeling of anticlimactic. According to "minibosses" in MP3 file, it is found that this is an Irish band, which has played many FC game music, and its masterpiece is Contra. ?

the second edition, the orthodox orchestral edition? This band is very famous. Boston Pops, a popular band in Boston, USA, is good at playing popular music with orchestral music, and this version of the conductor and score is likely to be John Williams, with a combination of two swords, and its effect is definitely "loud". The classic theme, the transition to the ocean theme at 1:4, the underground pipeline theme at 2:34, the classic theme at 3:, and a meaningful ending sound with Ending Title at 3:39. ?

the third version is still orchestral music? Strangely, it's almost the same as the above soundtrack, and I didn't find too much information. If the last one is "American version", why don't you regard this as "European version"?

the fourth piano solo edition? The underground theme inside is very heavy, and the fire prison theme is added, and the ocean theme appears at 2:13. The charm of the piano solo version lies in that you can feel the player's delicate and skillful control ability while listening, and the proficiency of manipulating 88 keys with 1 fingers. ?