Teleporting Puzzler

A short puzzle game in which, well, the gist is in the tagline. You've got to get both yourself and your 'last teleported from' location (indicated by the green swirl) to the flag in order to complete each stage.

The controls should be pretty well explained in-game, but just in case my hieroglyphs aren't clear:

Use the arrow keys (or WASD) to move
Press spacebar to teleport, swapping your position with the warp point (the green swirly thing)
Press R to restart the level if you get stuck