Let’s plan out the Thardus battle!
Here is how I envision it:
Enter from the left. On her own Samus flips down into the pit. I’m a fan of making everything actual-size from MP, so the quarantine is massive. Picture how long it takes to walk from one end to the other in Metroid Prime, then imagine running the same amount of time in a sidescroller (Okay, maybe not that much). Likewise it’s also going to be pretty tall, especially since you’re going to be spiderballing around the top.
The cutscene is like in MP – first a single rock pops up, then more, and suddenly that innocent stack of rocks is unraveling into a monster. Here’s where things change up a bit. Thardus’s right foot is the typical progress bar, pounding down onto the ground once the beast is formed. We wouldn’t be able to see this if Thardus was facing left. So instead… Thardus starts in the background! The rock pile is directly behind Samus, and the camera pans up as the rocks from all corners of the room come to life in the center.
So then the actual battle:
[Option 1] Thardus rolls out of the background and turns sideways for a side-scrolling battle not unlike Mr. Stone (Required viewing!). It stands still in front of Samus doing its attacks. We’ll want to modify the ice attack because it’s much easier to jump over it in 2-D. I haven’t thought this through as much because I prefer option 2, but we want to make sure Samus can’t get cornered after Thardus rolls.
[Option 2] Thardus stays in the background except while rolling. This means its animations can directly mimic those in Metroid Prime. The rock shots will probably have to be summoned at the same depth as Samus, then fly sideways. The ice we can get fancy with – maybe it tracks Samus from the background and you have to figure out when to jump. When Samus pulls the camera left and right, Thardus will stay mostly centered the background, with a little tug. One part of Thardus’s body at a time can be damaged by Samus’s shots as if it was floating in the foreground. Like PQ’s head.
[Rolling] is a big problem for both options. I think I had an idea involving boost balls and side ramps or underground or early spider ball or something but I’m about to fall asleep. I’ll let someone else come up with the rest. Goodnight!