Wow the presentation is amazing :O The sliding sound effect and the whoosh sound effect makes the game responsive and alive. The idea is basic but the execution made it so fun to play with. The levels intruduce ideas naturaly so there wasnt any confusion at the star :D
The only negative thing i can say is sometimes i made a small mistake at the end of the level an had to start again :/ but that is acceptable becouse of the puzzle games nature.
Overall great presentation and fun game loved it keep up the work :D