Thanks for playing our game Cranberry Ninja and it's great that you liked the puzzles. It would have been great to have some enemies and combat in there as well but we just ran out of time and something had to be dropped. Sorry about the lack of information in-game about the control scheme. It is the classic Dungeon Crawler control scheme, but with the modern Legend of Grimrock/Vaporum style mouse free look. Glad you figured it out. Good catch on the slots not matching the color of the key gems and also you're right, we should probably have gone for different shapes too to make them stand out more. Thanks for the comments on the visual theme and atmosphere too, we really tried to bring it all together in as self-consistent styling as we could, given the time scales. Best of luck with your jam entry and we look forward to playing it very soon!