I'm experiencing a bug. The game will not allow me to buy upgrades in the "warriors" menu. It deducts my experience points every time and increases the cost of purchasing the next one, but the square I just purchased is never highlighted and the upgrade is never applied to any of my characters. This makes it impossible to progress very far, unfortunately.
Is anyone else encountering a bug at the end of level 3-3? On both of my computers and both Firefox and Chrome, every time I hit the end of the level the ruby is missing so I can't progress.
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