Happy 10th birthday, PuzzleScript!

Here's a small puzzle sketch I made for the tenth anniversary of the public release of PuzzleScript on October 5, 2013. In the true spirit of PuzzleScript, I think you should play it on the PuzzleScript website itself, but for completion's sake I'm uploading it here too.

Keyboard controls: arrow keys or [WASD] to move; [Z] to undo moves; [R] to reset. [X] will select options from the main menu, but does nothing in-game. [Escape] will return you to the main menu.

Touchscreen controls: tap at the main menu; swipe to move; open the tab menu in the upper left to undo moves and reset.

Graphics are taken from the basic PuzzleScript example and Thinky Collective projects.