Pretty retro, pretty simple, pretty FUN! :O It does have that retro-challenging feel, thanks to the sounds and graphics, and it's got a really nice concept!
The way the game was built also made it pretty intuitive to me (how to play, etc.) and it's quite easy to get, even without reading the how to play instructions. :P
Loved it! :D I kinda always die when the "golden" blocks start falling :P
Also, you made the console/engine? That's neat! :O