Finally got into playing this and it's awesome. Small question though.
Where do I even begin to understand the trick for stuff like picrel? I left and got the double jump hat before coming back, and dealt with a push door that required a lot more push than I expected, but I'm still not sure what I'm missing here.
And actually a second question; Yoko wanted to go swimming so I got four swimsuits, equipped them, and then ran around checking every spot of the desert but failed to see whatever I was supposed to see. Did I do so too late or am I just blind?