Moving from terrain piece to terrain piece

[BarrelChestedBrad]

Theoretically if there is a character on top of a terrain piece (say a daily bugle) that can move long and can place a movement tool on another appropriate terrain piece (say deadpools taco van) and doesn't have fly or wall crawler can they successfully move from the first terrain piece onto the other terrain? The reason for this is that I know advancing off of a terrain doesn't require a small movement tool to be used, but would it cause complications moving onto another terrain? Would terrain or character sizes matter in this kind of scenario? 

[Negoldar]

In order to advance onto terrain that is larger than it, a character must climb. In your example the character would need to use a climb move action to get onto the taco truck unless they were the same size or larger than it or had a rule like Flight and Wall Crawler. 

Depending on terrain feature placement, you may need to use a move action to advance near the taco truck and another to climb onto it.