I didn't manage to run this game on ubuntu - ended up with error:
./icy-dreams: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by ./icy-dreams)
(same line 2 times with GLIBC_2.33 and GLIBC_2.34)
So I used wine to run .exe version.
I like this game, it runs really smoothly, music is nice, levels aren't hard, but it is hard to get far with only 3 lives. (I didn't manage to win yet.)
Thank you for the game!