$0089 Actions to take when the player (Writing to it will only have effect if $7E:0071 is equal to #$06.) #$00 = Enter a right-facing horizontal pipe. #$01 = Enter a left-facing horizontal pipe. #$02 = Enter a down-facing vertical pipe. #$03 = Enter an up-facing vertical pipe. #$04 = Exit from a left-facing horizontal pipe. #$05 = Exit from a right-facing horizontal pipe. #$06 = Exit from an up-facing vertical pipe. #$07 = Exit from a down-facing vertical pipe.

$0071 Player animation trigger. A list of possible values can be found here. (06 = Enter a vertical Warp Pipe.)