Ghost Song

a) I recommend using demajen's map, it has all the locations for the modules on it. You can find it at https://drive.google.com/drive/folders/1-cWtLR4MTxVPkU8L_-k2...

b) However, I wanted to put all the modules' locations in one place for ease of use. Here they are:

BLASTER MODULES:
1) Cloudburst Rifle: defeat Liselle Tal, the Lost Hunter in Lupoto to the left of where you started the game
2) Scatterburst: Bill's shop for 1,000 Nanogel
3) Chill Crumbler: defeat Bradley Wells, Tellrui Mining Company in the Six-Finger Woods in the bottom-right-most room partially filled with water
4) Skel Planter: Mabec's shop for 1,000 Nanogel
5) Firefly: Mabec's shop for 5,000 Nanogel
6) Skab Device: top left of top-left-most room in Rote-Shotter (filled with flying enemies)
7) Flowersong: right end of bottom-right-most room in Stoffbloom (after Spikemouth, the Hateful)
8) Plasma Burner: drop from Leggett, the Deserter in Lupoto in the room left of the broken pipe leading to the right part of Norberg Laboratory
9) Coburn Launcher: drop from enemy in Blake's Stroll accessed by going left from the Crash Site (unmissable)
10) Blob-bloom: defeat Fome, the Green Blob in Lupoto, accessed by going as far left in Lupoto as you can then going down and right into the rooms with slimes
11) Blob-bloom: defeat Vek, the Red Blob in Stumbledeep in the room right before the ship part
12) The Sprinkler: Roslock Drift Alpha to the left of the gauntlet of crab-like enemies

SUIT MODULES:
1) Heart of Fire: in the room behind the unbreakable squishy wall in Roslock Drift Alpha, accessed by progressing Mutt's questline
2) Heart of Strength: in a cave in the right part of the Crash Site, accessed by wall-jumping up or descending from the top reached via Sap-Stone
3) Heart of Steadiness: purchased from Mabec's shop for 1,250 Nanogel
4) Clutcher: behind several breakable walls in Huttle Drop, behind one breakable wall from Slovenmuck (the dying Roslock stalker)
5) Five-Fingers: drop from Elias, the Head Breaker, accessed by going down from Blake's Stroll and going right (or going left from the unlocked shortcut from the Crash Site)
6) Nano-Boost: at the end of the right-most room of Roslock Drift Beta (requires double jump or wall jump)
7) Berserker Device: defeat Kellunhelk, the Cracked Engineer in the Junkpit (need to be carrying a ship part or the Curious Gizmo purchased from Mabec)
8) Distant Star: purchased from Bill's shop for 1,000 Nanogel
9) Molly's Tweak: given by Molly after turning in 2 ship parts and exhausting her dialogue each time
10) HeatHawk: in the room with a bunch of slimes to the right of Fome, the Green Blob (leading back to Norberg Laboratory)
11) Backlash: 2 rooms above Norberg Laboratory (right part)
12) Ogre Device: defeat Elsom, the Ogre in the Junkpit (I recommend doing this once you have wall climb and have reached the save flower/Big Bot immediately to the left of him)
13) Summer-Step: defeat Devilwink, the Vanished in Sap-Stone (she's invisible and passive at first but when she runs off, exit and re-enter the room for the boss fight)
14) Gunner's Harmony: purchased from Mabec's shop for 800 Nanogel
15) Ramstone Decoy Dash: talk to Rime in Lupoto to the left of where you started the game, after doing something (maybe turn in 1 or a few ship parts? Rime wasn't there at the start of the game for me)
16) Fishmaster's Glow: drop from Gumbelly, the Heavy Hand in the room to the right of the left part of Norberg Laboratory (may also be dropped elsewhere?)
17) Lord's Insight: purchased from Bill's shop for 1,000 Nanogel
18) Extra Jump: purchased from Mabec's shop for 3,500 Nanogel
19) Liferun: far left of the very top room in the Six-Finger Woods
20) Flowerstep: "drop from fisto enemies" in Rote-Shotter (I don't remember how I got this one)
21) Whistle Shock: defeat Old Singer in the Six-Finger Woods
22) Adam's Tweak: in the bottom-left-most room of Lupoto leading down into the Junkpit
23) Suntouch: defeat Henriette, the Changed One in Roslock Drift Gamma (unmissable)
24) Robotic Heart: bottom-right of the room in Huttle Drop to the left of the room with the first save flower
25) Frenzied Shell: drop from crab-like Roslock enemies in the right-most room of Roslock Drift Beta (requires double jump or wall jump)
26) Volatile Shell: drop from crab-like Roslock enemies in "The Pit" at the bottom of Roslock Drift Alpha
27) Hardened Shell: drop from crab-like Roslock enemies in "The Pit" at the bottom of Roslock Drift Alpha