Great work. I have never even heard of Pazuru until just now :p very unique puzzle game perfect for the Pokemon Mini.
Personally I think the game needs to be a little faster to match the 3ds version's speed. You could also add the fading line effect, but that's not entirely necessary.
Something nice to have that's not critical, adding a menu, level select, options, pause screen, etc... and if you really want to polish the game you could add sound effects and music.
Thanks for posting, I had a lot of fun playing this, I got up to level 18.