Yoshi state:
$0000: Regular (player control)
$0002: Cutscenes; screen transition (pipe going right)
$0003: In screen transition (pipe going left)
$0004: In screen transition (pipe going down); in prologue cutscene (Baby Mario mounted)
$0005: In screen transition (pipe going up)
$0006: Entering/exiting pipe; in transition (pipe going right)
$0007: In screen transition (pipe going left)
$0008: In screen transition
$0009: In screen transition
$000A: Entering door
$000E: Dying from spike
$0010: Transforming
$0012: Smashed by falling wall (sprite $036)
$0014: Activating goal
$0016: During level intro
$0018: Being thrown toward baby mario at end of transformation
$001A: Dying in pit / inside piranha plant / receiving boss key / shrinking during Prince Froggy
$001C: During prologue cutscene
$001E: Pushed away in Raphael Cutscene
$0020: Entering Raphael Boss room (moon)
$0022: Entering keyhole during boss key cutscene
$0028: Dying from lava
$002A: Being ejected vertically (after transition)