I really like how this game plays. More interesting than any other word solve I have ever seen. This is something that if you have daily/weekly challenges of some sort, you could constantly draw players back to complete puzzles. It also looks really challenging in that diagonals and cross-plane words are involved (but I can image that these become easier to find once you strip away more words from the block).

I feel like definitions are a good addition to a game like this but I do not like how they are implemented. It appears that there's a timer that counts down between finding words and if you're busy reading a definition of a word then you're either missing points or losing the game by using the definition feature (it's not entirely clear what happens when you run out of time in the video). Instead if the game paused and the definition covered the gameboard, this would give the player an opportunity to read definitions, also not lose time and not look ahead at further words on the board.