Nice game! I reached the black & white level.
You need to make it full screen to see the timer running down. Also it's good to know you can double jump (it is described but could be more clear).
And it's a deliberate thing because I usually make games for Windows knowing that I had to do it for the Web I kept the features for a downloadable game that's why there's the button to put it on the screen👷⚒️
