Space Squash

• compatible with the Japanese version (and the English translation patch if you like)
• disables the forced delay to read the warning screen
• title screen: makes button open the main menu instead of booting directly into game
• saves game progress and character upgrades at the end of each Area
• adds a Continue option on the main menu to load saved progress
• adds support for saving high scores
• fixes an original game bug when updating high scores (old scores weren’t propagated down the list correctly when beaten)
• saves all Config Mode options: level (difficulty), backdrop, BGM toggle, match points, continues and brightness
• erase save by pressing + + + on the title screen

Sources here.