I believe i did not understand very well how it is played: when the block falls where the black triangle is, it does not “attach” to the block below, no matter how many times i click—it keeps jumping. Is this normal, or am i doing something wrong? Also, sometimes blocks disappear and i have not figured out why.
I also would recommend against distributing the game in a RAR archive, given that Windows Explorer cannot handle these files and i had to download unrar to play the game. Maybe not a problem for a jam—we all do what we can with such a short deadline—, but in general i think ZIP archives are a better choice.
I do not want you to think that everything was negative, because i did like the art and the sounds are cool too. I am sure that given a day more to polish the rough edges would make it shine as it should.
Good work!