I like the idea, but it could be have been executed alot better :) You'll get better with each game, just keep making and making. The feedback on this game is really good feedback, take it and put it somewhere safe (here works too). Try adding some kind of story, a goal or motivation. The game also felt a bit clunky and hard to manoeuvre, try adding small details like when the block gets drilled particles get bounced off and it smoothly fades away or something. Little things like that are things that the user doesn't really see but feels. Can't wait to see your future work, keep it up!