A couple of missile upgrades that are hard/unoticeable
Triceratops pit in Magmoor caverns. If you use the X-Ray visor you'll see that there are floating platforms, follow them to find a missile enbedded in rock - super missile it to get it.
Behind your ship - roll through the tunnel.
Overall their are
14 energy tanks
8 power bombs
250 missiles
^ That's not how many u pick up but the total you will have if you get everything. Hope it helps some of you notice what you're missing.
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A sequence break I do EVERY time is in the Furnace - Chozo Ruins.
Usually you need the spider ball, but it's possible to jump on top of it! Allowing you to get the Ice Beam before beating Thardus. Then goto Phendrana and go through the Pirate Labs to get to Phendrana's Edge. From there you can jump up branches sticking out of the wall to get a power bomb WAAAYYY before Phazon Mines!
After doing that you can goto Geothermal Core (Magmoor caverns) and get the Plasma Beam! ALL before Thardus
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Omega Pirate help:
Start off by Super Missiling his armour. Then when he goes invisible and pirates drop down - Power bomb then.
Switch to X-Ray visor. When he appears on a Phazon pool hit with another Super Missile. He'll teleport away again - more pirates come and he'll re-appear. Super Missile him again!
I think it's 3-4 super missiles + 2 regular missiles will kill him.
It's not really that hard. Personally I think Meta-Ridley is the hardest (but those who quit at OP never seen him
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