wow, dude, this is awesome for a solo development in 4 days! I like the idea, maybe you should have made the crash instant, or so that you could hold down the S key. But the art, the idea, the music, everything is great! Well done!
Regarding your feedback: You can press Enter to instantly drop the block. Initially, as you suggested, holding down S was supposed to make the block fall faster. However, I encountered some bugs that I couldn't fix quickly, so I opted for the Enter key instead.
