I wouldn't call it Original at all. It's a resprited clone of Yoshi for the original NES.
Author Comments
XMas Swap is an original puzzle game from Rainbow Design. Help Santa to match presents and packages before it's too late!
S to accelerate drop speed
MOUSE CLICK to swap columns
MOUSE LEFT/RIGHT to change position
This strikes me as a relaxed (albeit cliché) throwback to Mario & Yoshi (known simply as "Yoshi" outside of Europe) on the NES/GB.
While it's a nice idea, the mouse control just makes gameplay awkward. A keyboard control option would most likely remedy this.
This makes me relax while thinking yeah good :)
Cute graphics! Also I like the alternative Tetris idea!