How did I score more when I didn't know the rules... seriously though the background, I think symbols is better than words, this more like casual games but with timer, is like an end game time of content, if there were tutorial and several levels, I am actually can't figure out which stuff is the least, is like there's always 3 groups of 3 things, then there 1 group of 4 things ...
maybe I am just not good at this -_-
smooth spin animation.,
To clarify the grid you noticed, it actually follows a 5, 4, 4, 3 distribution. This design ensures that there is always one clear outlier for you to purge from the system.
You are absolutely right about the tutorial. That is a great suggestion, and I will look into adding one to help new players get up to speed faster. Regarding the structure of the game, it is designed as a pure Time Attack experience, so it stays focused on one single, fast loop rather than having multiple levels.
Please do not be too hard on yourself for finding it challenging! It is meant to be a fun test of your speed under pressure. I am glad you liked the spin animation, and I will keep your feedback about using symbols versus words in mind. Thanks a lot for the great input! :)