Hello! I checked the game on the Spectaculator (Version 184.108.40.20692). You must quickly click in order (for example)"O", "P", "Space" as if doing a combo.
I'm having the same issue. Trying to play with a controller (xb360), I was having no luck. switching to keyboard I had more luck, but it seems like the timing is very specific. You can't go too fast or two slow.