Improved math problem legibility
Fixed defeat screen button focus when using controller
Improve upgrades screen usability (mostly when using controller)
Challenge mode:
Math problem operator weight changes, for example: Division difficulty will now mostly have divisions, multiplications will have mostly multiplications
Added difficulty description above the Divisions (only achievable when using auto increase difficulty)
Increased math problem unit rewards to be generally much higher than choice rewards
Changed enemy unit progression, to more gradually introduce new enemies
Added a maximum number of enemies per level, to prevent degraded performance
Reduced challenge stage requirements on its achievements
Note: The demo has also been updated with these changes.