The VG Resource

Two Super Famicom games have music whose melodies sound very similar to each other. Listen to the SPC's and you might hear it.

Airplane - Hourai Gakuen no Bouken!
Stage 3-2 - Super Back to the Future Part II

Found another one!

BattleTanx: Global Assault - Unknown
X-Men - Theme

Noticed another two:

John Madden Football - Theme
Richard Myhill - The Hit

Removing the voice samples of the former (or the hearing the not as good SNES version) and you hear how close they are, twangyness aside.

Thunder Force IV - Light of Silence
Perfect Dark - Chicago Stealth

For shame Grant Kirkhope, for shame... It's one that I noticed for years, wonder if he knows the similarities...

https://www.youtube.com/watch?v=q5d1rrbNo3o
https://www.youtube.com/watch?v=rcjpags7JT8

these are so clearly similar i wouldn't be surprised if the devs were sitting around listening to 80s music one day thinking "huh, this can work!"

Desert Strike - Main Theme

Duke Nukem II - Duke Kicks Ass

I guess Doom wasn't the only game that Bobby Prince did that was inspired by something else. Then again Duke Nukem II was full of borrowed stuff...

I think those sound similiar:

https://www.youtube.com/watch?v=qYJkol00JCE
https://youtu.be/ICAmZYlyEOc?list=PLkhr1edZuU2IFV514K1mZWDLX560HpT3I&t=17 (at 0:17 seconds)

Soldat Choix - Undercover Cops




Choice or Die - Armed Police Batrider (Ignore the credit noise, this was the only upload of it separate from the entire soundtrack)



Even more coincidentally, they're both character select themes.

Tomb Raider 1 Main Theme. (A Game about finding Atlantis)



StarGate Atlantis (At 0:54 when the chorus starts)