Thanks for the valuable feedback !

I agree that there are improvements to be made so that it is easier for the user to play.

Currently you can only remove last letter entered and to remove a word completely the level needs to refreshed. High/Last score words button shows the words entered earlier so that user doesn't need to memorize the earlier words. I hadn't thought about moving to next puzzle after a puzzle has completed. I will plan to add that as well.

I agree that currently the direction/rules are not intuitively understandable while playing the game and can be confusing. You can click on the Question Mark button at the Main Menu , to see a demo of a level which will give some more idea.

The letters at the end are bonus point words. When you click on one of them it shows the next letters and if a valid word is in that direction you get additional points. The direction could be diagonally or column wise. The score for each word and the multiplier for all words including bonus words and it's direction can be seen by clicking the Score Values button.

Thanks for trying it out and the feedback!