Thanks! The progression is a bit wonky, I agree, we did kinda did spend only a day on thinking about the values and the enemy waves, so it ended up feeling quite rushed. The cost scaling of upgrades definitely needs a lot more work, for some of the towers it definitely goes up too fast. The music bug was due to a typo I made when writing the SFX code last-minute, so I still feel pretty silly over that haha, basically the heart plays the enemy damage sound so many times at once it breaks Unity’s sound engine and makes it go silent until the sounds stop playing.
Glad you enjoyed it! :)