Tip: Layer 3 backgrounds and tides disappear when you hit a message box, so plan your level around that. For example, you can add a sublevel without layer 3 at the start/midpoint, and include your message there.
I'm Kieran. I made SMW Central, but I'm not the one who runs it nowadays. I have next to no knowledge about SMW hacking and I never made a hack. Even though I'm not very active, I'm generally friendly, so don't hesitate to contact me for any reason.