SMBX Custom Level: Submarine Sprint

I'm thinking of making this level longer and harder, as I think it could use some work.
If anyone has any suggestions on how to improve it, please let me know. :)
CREDITS:
-Shikaternia: Underwater tiles and BGOs
-Tango_311 and Red Yoshi: Metroid Fusion underwater background
-Joao564: Star
-PROX: Airship (submarine) tiles and BGOs
MUSIC:
-Mega Man 9, "Splash Woman's Stage (SNES)"

[@almondjoy4938]

I really enjoy how unique this is but it seems like the Submarine Guys are unable to pose much of a threat as they are. Perhaps if they shoot torpedos in a similar way to the Ice Witch Koume or launch them in a much faster way, they could be more of a threat.

[@tiffneysmith3323]

Looking great there Omid! ;-) 👌🏽

[@omberonilink4118]

Thanks. :)

[@tiffneysmith3323]

@@omberonilink4118
No problem. ;-) 👌🏽

[@vincenthua679]

Request: SMBX Custom Level: The Beautiful Briny Cheep Cheep Sea