The demo has been updated to version 0.9.5. Changelog below:
You can now hover the tokens in the top left of the upgrade tree to highlight upgrades of that type.
Fixed an issue where you could level up towers with the shift keybind before the level up milestone had been unlocked.
Fixed an issue where you could accelerate the last wave before the early spawn milestone had been unlocked.
Fixed an issue where you would earn hourglass tokens without actually completing the time trial.