This is a very good example of how awesome games can be made from simple mechanics. Level designs are brilliant and clever. The artwork of this game also looks so good and the music is just perfect. Nice work for 48h! I had lots of fun playing your game!
By the way, I got some errors during the game, although it didn't affect the game somehow I guess, as far as I can see. So I just paste it here:
WARNING: _notification: World already has an environment (Another WorldEnvironment?), overriding. At: scene/3d/world_environment.cpp:40 ERROR: (Node not found: "../FallinMeltBlock2" (relative to "/root/GameWorld/Level7/Interactables/MeltableBlockSky").) At: scene/main/node.cpp:1371 ERROR: (Node not found: "../ice2" (relative to "/root/GameWorld/Level8/Interactables/bigice").) At: scene/main/node.cpp:1371