At first glance, MouseCraft reminds players of two classic puzzle games: Tetris and Lemmings. The pieces are there on a superficial level. Three mice walk blindly forward under a specific set of rules; meanwhile, the player rotates and places tetrominoes to aid in reaching the goals.
That is where the similarities end. The mice themselves never take on any special roles, and the tetrominoes do not disappear when fit together in a line. Indeed, a lot of the puzzles require that the blocks do not fit snugly together, which runs counter to conventional play with them. MouseCraft is very much its own puzzle game with its own puzzle premise, and that premise is pretty good.