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Chapter 1:
-Verse 1: Muspelheim. From the starting area, move across the big plaza and hang a left once you reach the submerged temple, the portal is in front of a closed gate.
-Verse 3: After the underwater fight in verse 2, continue on and stay on the left hand-side. Jump over the rubble to find a Muspelheim.
-Verse 4: After coming up out of the water, instead of continuing towards the Gates of Hell portal. Go in the other direction towards the dead end.
-Verse 5: At the plaza, there's a Muspelheim on the left hand-side, underwater under the archway. Not sure if it's there from the beginning or if you have to beat Verse 6 first. I missed this one in the video.
-Verse 8: After the Valiance fight, stay on the 2nd floor of the temple and move to the right hand-side for a Muspelheim.
-Verse 11: After Verse 10 is completed, backtrack to the main area of the temple where you freed Loki.
-Verse 12: Continue on after Verse 10, then at the area with the small bridge. Jump in the water and go towards the big open area.

Chapter 2:
Verse 1: Muspelheim. Go into the alley on the right at the area you start in.
Verse 3: Evade the tidal wave, then backtrack to where you fought the enemies of Verse 2.
Verse 4: After the little chat between Loki and Bayonetta, open the door, go inside a little bit(not necessary?) then go back outside towards the edge.
Verse 6: Near where the LP for Kafka spawns, open the 2 chests.
Verse 9: Muspelheim, in plain sight.

Chapter 4:
-Verse 2: Jump to the broken piece of building sticking out in the distance on the right after the Fidelity fight.
-Verse 4: Muspelheim on the side of the building, near the fighting area of Verse 3.
-Verse 6: Go into the little side-area on the right after the cutscene with Loki, then walk back out.
-Verse 8: Break the bench the couple is sitting on.

Chapter 5:
-Verse 2:From the starting area, go into the water then dive under a collapsed building on the right and rise up out of the water, jump on the small island with a Muspelheim.
-Verse 3: Instead of going up in the underwater tunnel, proceed further down to the dead-end
-Verse 5: After the room has flooded, you can reach a Muspelheim located on one of the balconies.
-Verse 6: After jumping out of the water, jump back in and swim to the bottom
-Verse 7: Go all the way around in the circular room, in the opposite direction of where the stairs are.
-Verse 8: Muspelheim at the top of the stairs.

Chapter 7:
-Verse 4: Muspelheim located in a small side-area, instead of going forward after Verse 3, go right, down the path.

Chapter 8:
-Verse 2: Muspelheim located in an enclosed room on the side of the building, look to the left after beating Verse 1 and you should spot an area you can jump to.
-Verse 6: After getting the remembrance pieces and returning back to Inferno, go all the way back to the platform you started the chapter on.
-Verse 8: At the waterfall where Loki creates a portal, there's an area behind it, also has an LP piece.
-Verse 10: Muspelheim located underwater, in the room before the big open room, on the side of the wall.
-Verse 12: Muspelheim after getting the remembrance pieces. Easy to spot.

Chapter 9:
-Verse 1: From the area you start in, look to the right and jump on the floating platforms.
-Verse 3: Muspelheim located at the temple-looking building, between some pillars.
-Verse 5: When standing in front of the broken stairs, look to the left. Jump on the platform in the distance.

Chapter 10:
-Verse 1: Muspelheim, go down the path on the left in the starting area.
-Verse 3: From the Verse 2 area, instead of going forward, go right and jump across the platforms onto the cliff.
-Verse 7: After verse 6, go up the elevated terrain on the right.
-Verse 8: After moving across the branch, go right and follow the path.
-Verse 9: Muspelheim, after moving across the branch it's in plain sight.
-Verse 11: After the Sloth fight, take a right.
-Verse 12: Activate the tree after the Sloth fight, then backtrack all the way to the beginning where you fought Phantom.

Chapter 13:
-Verse 1:In the first building you enter, instead of going right and moving outside, keep going forward into the side-room with the chest. Open it to trigger the verse.
-Verse 2: In the big open area with the fountain, go to the small shrine on the left to find a Muspelheim
-Verse 11: At the end of the narrow hallway, before the room with the crescent moon table, go behind the grating on the right. There's a hidden Muspelheim near the vases.

Chapter 14:
-Verse 3: Eh, not really hidden. Muspelheim after Verse 2 in front of the door. Hard to miss. :V

Chapter 15:
-Verse 7: Instead of going through the door after Verse 6, continue along the path to the left.
-Verse 8: Keep following the path and at the dead end, there's a hidden Muspelheim on the left.

Chapter 16:
-Verse 3: Outside, on the right of the steps leading into the big temple, there's a Muspelheim.