Cute graphical idea and the pink and blue are certainly iconic.
I thought you could have perhaps differentiated the two worlds a little more to build the characters of pink and blue and put eachother against some more unique traps or designs. I also wasn't a huge fan of when we started controlling them both as it felt a little random... haha.
Some more juice would also go a long way; something like jump sounds, death particles, fade ups and a more inventive timer that perhaps makes some noise.
It's definitely a rush to play; with a few more levels some more measured pacing and some more time on polish this could be a cute game!