Really cool concept! It's like carrom meets curling! Initially I was quite lost on how to place and shoot discs; A small picture tutorial in game would help to explain the instructions, but the inclusion of the flashing placement area helped a lot. It would also help explain the scoring rubric (discs left on board scores point).
It's also very cool to have a shop mechanic added to this! Maybe a text label showing "Shop" on the navigational map would help. Since the discs are spilt by type, maybe an inventory-based UI would help by stacking discs of one type into a stack with a quantity label!
Overall, I had fun with this entry!!