Not OP but the first black coin for 4-1 is fairly easy if you do the following:
(1) on the platform with the black coin, wall jump to the right edge and collect enough coins to let you fall through (once the coins to brick)
(2) wall jump off the left wall to walk over the blue switch
(3) tap off vaulting the switch to activate it
(4) let Luigi/Mario naturally fall through the gap and scrape the right wall downwards... patiently...
(5) light jump onto the platform with the black coin and walk through the coin wall
(6) let the blue switch effect expire and walk into the black coin
I'm stuck on this level. How did you get the first black coin? I've tried timing it right and I just can't get it.
Not OP but the first black coin for 4-1 is fairly easy if you do the following:
(1) on the platform with the black coin, wall jump to the right edge and collect enough coins to let you fall through (once the coins to brick) (2) wall jump off the left wall to walk over the blue switch (3) tap off vaulting the switch to activate it (4) let Luigi/Mario naturally fall through the gap and scrape the right wall downwards... patiently... (5) light jump onto the platform with the black coin and walk through the coin wall (6) let the blue switch effect expire and walk into the black coin
Awesome, thank you so much!! Took me a good 25 tries with different characters but finally got them all.
Yeah this one is tough