Mario Party Overlay is a highly customizable and easy to use 'Bonus Star' tracker for the Mario Party series, supporting every game in it (incl. the upcoming Mario Party Superstars once it's released -- that said, it will likely take a week or so until all the bonus stars are found and implemented). It also includes a greenscreen so it can be used in a livestream!

Website

Click on the numbers to increase the counters, by holding Ctrl you can decrease them instead. The amount can be changed at the top (1, 5 or 10).
It's possible to switch between 1 and 5/10 by holding Shift.
To give/take the coin-star you just click on the character.

Characters and counters can both be changed at the top.

Settings can be found by clicking on the gear and then "Open Settings" (or by clicking on the gear while holding Ctrl).

A more extensive (and likely up-to-date) introduction can by found by clicking on the gear and then "Credits".

All characters, products and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Mario Party is a registered trademark of Nintendo.

Created by blueYOSHI with contributions from others

Icons, libraries and other things are done by various people, visit the website to view the full list (direct link to credits)

Mario Party Overlay is licensed under the MIT License.