Full disclosure, I did heavily rely on AI to assist with building this, but I still hope you’ll give it a shot as I did put some good time in “directing” it so to speak and I believe it turned out well!

Edit Adventure of Chalvo, Score Attack!!, and Pocket and Cushion stages, save your work as a project, and export a separate patched ROM.
You can change the terrain, enemies, powerups, BGM, background, ball placement, score/time targets, wind hazard, gobbler hazard, etc.

Additionally there are optional enhancements you can add to your game such as a Boss Rush Mode, Stage # Displayed in HUD, SRAM, Debug Restoration.
You can also dump the game’s sprites and music!

Give it a shot and I hope atleast one person finds some use in it!

https://github.com/Levine91/Bound-High-Editor

This is cool 😎