Hebereke's Popoon

Hebereke's Popoon is an obscure puzzle game that was only released in Japan and Europe.

Unused Music
An unused theme can be found in the game's data, it could be heard here.

Regional Differences
The Sunsoft logo was changed between regions. PUSH START was renamed to PRESS START! with the font being changed, LICENSED BY NINTENDO was added, and the Hebereke logo was changed from yellow to orange. The controller was removed in the European version and the colors for the buttons were changed (despite the European SNES controller sharing its colors with Japan).

Region Lockout
If the game detects it was running in NTSC instead of PAL, an error message appears with a typo, this was only present in the European version as the Japanese version runs fine when running on PAL instead of NTSC, albeit being slower.

Prototype
There was a prototype dated a month before the game was released, its only known difference is that losing a match takes you back to the Sunsoft logo, rather than taking you to the versus menu.