guess

1st - Welcome to the forum.
2nd - I was trying to get B up the level and I think that B could auto pilot onto the lowest lift after letting Z out but them I noticed a free draggable (FD) right beside the win. I slid the FD onto the win and the level was won. I'd suggest staying away from free draggables.

Hi and welcome to the forum! This is a very typical first level, many of which feature auto-moving sliders, lots of Zappers and, unfortunately, free draggable blocks. Which can be used to cheat like the video below, only the one you used was much easier to win with.

Thanks for play my level and comment, i'll taking in account yours observations..
Soon i am gonna add other level and improve the first one.