Another variation of technique I call hyper sprite.
Also the making of sprite set and what I needed to do for convert it to Atari 2600 graphics.
Believe, this was the easier part, making the kernel was the difficult thing, thanks to HMOVE hardware bug.
I'm listening right now Tenpole Tudor, very cool early 80's punk band from UK. Together with Toy Dolls, Damned and Sex Pistols my favorite punk bands from that era.
Below, the Atari 2600 rom if you want.