mmmmm Dropzone is superb!
I was a big fan of the C64 version too - then I played the Atari version - tis faster and maybe a little smoother?
I met archer maclean recently (again) Retro Fusion in Leamington Spa - superb bloke - signed a couple of games for me. He wrote both the Atari version and the C64 version himself. He prefers the Atari version too!?!?
Nice work plasma!