How to detect unsafe platforms?
Solution 1:
The whole confusion of the falling and not falling platforms is a design choice. AVGN Adventures is kind of a tribute to old extremely difficult NES games that didn't hold your hand and give you information and were just generally unfair. See Ghosts and Goblins, Castlevania, Megaman, etc. So no there is no way to determine what platforms will fall and which ones do not, trial and error is the only way to figure out what to avoid.