Thank you for your reply. The sprite-sheet I’ve uploaded is not the same as the final spritesheet in the game (which is 980x630 and I’m still making it smaller by simply using smaller visuals as well as removing some frames (and reusing them). Remember I also have to use 5 (!) of these badboys.
Yes Flash was so much better at this. It sucks that these simple things seem to be so difficult. Right now I am looking into Phaser to see if that helps a bit in the preformance. I’ll keep you posted.