Attach to Layer - Larry Shell/SMB3 Bowser Issue

[FanofSMBX]

Hello, I am trying to do it so that

1. A moving enemy (Goomba) is attached to a coin layer to make it move
2. The coin layer is attached to a shell layer. Once the coin dies, it will show the shell layer which should be moving with the coin

I would think that the shell would spawn where the Goomba is because the Goomba is supposed to move the coin layer, which is supposed to move the shell layer. But it doesn't. The shell just spawns at the initial place where I put it in the level. Can I do anything to fix this? Note that I am using the coin to fake a "stomp hitbox" for SMB3 Bowser, so I cannot just have the SMB3 Bowser have a Death Event. The Death Event/attached layer probably needs to be on the coin.

Note: Please ignore the many unused layers and events in the level. The only ones relevant right now are Bowser1 and Shell1. I have also used a Goomba for testing simplicity but it will be replaced with Bowser later.

https://www.sendspace.com/file/hlsqrm

[Enjl]

The coin never has speed. The goomba is the only thing that moves, so the shell needs to be moved by the goomba. The simplest solution I can think of is to not use events and layers and just call NPC.spawn(shell id, x coordinate, y coordinate, section) using the x and y coordinates of the goomba, and also to stop doing this hacky thing and detect bounces using Colliders.bounce(a, b) where a is the player and b is bowser.

[FanofSMBX]

The coin never has speed. The goomba is the only thing that moves, so the shell needs to be moved by the goomba. The simplest solution I can think of is to not use events and layers and just call NPC.spawn(shell id, x coordinate, y coordinate, section) using the x and y coordinates of the goomba, and also to stop doing this hacky thing and detect bounces using Colliders.bounce(a, b) where a is the player and b is bowser.

Oh ok, I just forwarded this to Erik. The reason I tried doing it in 1.3 was
1. I never thought to ask Erik (the user I tried to solve this problem for) what version of SMBX they were using so I looked for a system-agnostic solution
2. I looked for a scriptless solution since I liked Erik's idea enough to put it in a future episode of mine, and since that episode would use TheXTech and no support for any sort of scripting has been added to that version.