v2 of DropSum. Completely re-written from the ground up (I've learned how to program a bit more since the original!) and with new features...
Using the arrow keys rotate the game board to re-arrange the tiles - very useful for getting out of sticky situations and for advanced players.
Clear 10 tiles in one go and you'll earn the power-tile - hold the mouse button to charge the tile before releasing it to slam into the pack.
Drop tiles into the grid. Make adjacent rows and columns of tiles add up to 9. When you do the group of tiles change colour, from grey to blue to yellow and then to red. Make a group with red tiles and they will explode leading to potential combos and massive points!
dropsum rotation puzzle