I don't really like tetris, but this is really cool combination and this red slime guy is really cool.
I didn't feel game was getting harder though. Pressing s key to drop piece is somewhat confusing to me.
Thank you for playing our game. We appreciate your review. There is no increasing difficulty as we wanted to see if the players liked the game as it is or they want a more challenging game. And the 'S' key confirms the location of the piece and you have to avoid touching a falling piece. Hope that helps :)