Bad Ice Cream 2 is a maze game about controlling space. You play an ice cream cone in a grid full of fruit and monsters; you can create walls of ice in front of you and smash them again, which lets you seal monsters into corners, open shortcuts, and protect yourself while you collect the level's fruit.
Nitrome made it, and its charm is the two-player mode: two cones on one keyboard, cooperating badly, trapping each other by accident. It's one of the best co-op games in the catalogue.
Yes — two players on one keyboard, one on the arrow keys and one on WASD. It's designed for co-op and is much more fun that way.
Pressing the ice key creates a line of ice blocks in front of you, or smashes existing ones. You use it both to protect yourself and to trap monsters in dead ends.
Yes — a light 2D game that runs in the browser with nothing to install.