I paused briefly in the beginning because its random where you spawn. I need to identify the room layout so I can immediately get the power-up and start collecting studs. Middle Room to Right Room, or vice versa, is the most optimal spawn route if you're grinding this stage. Mostly due to the location of studs/the power-up. The only mistake I made was missing the power-up once but I don't think that cost too much, not sure if sub 20 is possible.