Really liked the concept here, felt like an upgraded version of 2048 with some tetris vibes to it. Core idea is strong, and the feedback when two nines comes together really feels like you've hit a jackpot.
Also love the leaderboards and multiple modes, this game could definitely have an active community if enough people get on board.
Only issue I ran into (and it could be me not seeing it) was I did not have a sense of how much time I had left in timed mode, the game would just end when I was in a scoring sequence and I felt like if I had known how much time I had left I would've played it differently. Having some type of on screen notifier of remaining time would make it a better experience in my opinion.
Overall, really fun game, keep it up!