This was a prompt I was gonna use but y'all can have it!
Slaughter Search
The Smash Mansion starts to become an aura of mystery. Who is making the strange wailing noises? Who is leaving odd packages outside smasher's rooms? It starts off small but when messages written in blood cover Master Hand's walls, a team of smashers form to find out. A story of mystery and adventure, and maybe a few romantic confessions on the way.