Here's a little something I just figured out and threw together: SP4 Reclaim
From the readme:
SP4 Reclaim System
This sprite is a quick workaround I found for the problem of dynamic sprites permanently "eating" the last few tiles of SP4.
How to use:
Set the level's extended animation area to either the same as SP4 or a file identical to it from tiles 40 to 7F
Set up two ExAnimation slots as follows:
- Type: 0x20 8x8s: line
- 1 frame
- For the first: Destination 4C0, Frame 00 6C0
- For the second: Destination 4E0, Frame 00 6E0
Place the sprite about two or so screens away from anywhere a dynamic sprite can go. Place your sprite using SP4 on the same screen.