(The "How to" section does not have multiple languages!!(!))
This game was created over the span of three days.
Infinitely many levels! Play the default levels or choose your own seed and play your own level pack. Guaranteed to be random! (and the same every time)
Online highscore! Upload your score to the online highscore system and brag about your puzzle skills.
Intuitive controls! Using mouse or keyboard? Doesn't matter - GBUS supports both.
Three difficulty levels! Grand master or complete noob? Don't worry, GBUS has you covered.
Three game modes! Getting tired of default playing mode? Play timed or survival mode!
Good for educational purposes. Teaching the order of operations? Introduce GBUS to your pupils, they'll love it.
Slick sound effects - GBUS uses the best sound effects from freesound.org