How many levels are there? A few more earlier ones could help take the edge off of lvl 2 and let the player familiarize themselves with the strategies involved. Looks and sounds great, but youve gotta get some music in there. Even just a royalty free short loop of something would be immensely beneficial. Also, its obvious to anyone who plays a lot of games, but you should really put the controls into the game somewhere. Solid entry overall. Lots of easy ways to improve it, which is great news if you want to make a post jam version.