And thanks for your feedback. I had hoped to set up separate collision detection that would be the balloon would pop and the character would fall to the ground, but I struggled with the collision detection.
I'm hoping to improve and re-build it soon (Web GL, and possibly Android Mobile). I had issues with my version of Unity and with 2 hours left before the deadline I played it safe and built it in the only way I could.
Apologies for the menu screen being broken, I think the the clickable UI Button is lower down in the screen, so you need to click all over a bit to find it