Do you want to be a cameo in a future update and expansion to this game? Check out the details here:
https://goldenbeard.itch.io/charles-mansion/devlog/105861/charles-mansion-highscore-contest
If you can get the highest score by the end of the voting period, you can be added as a cameo, dead or alive!
Some tips to get more cash:
1. Collect everything, beat up everyone!
2. Look for things hidden out of plain sight. Some items aren't easily visible, but nothing is completely hidden if you're in the same room.
3. Good ol' luck with what the enemies happen to drop, can't do anything about this one!
Good luck!