Join the free puzzle game Shifter on www.flash-game.net to have fun. The mission in the game is to send the hero into portals. Move with the arrows or WASD. Press the space bar to depart the setting blocks and then use the arrows to change their positions. Then press the space bar again to connect them when the remodeled setting is available for the hero to the portal. Mind the block with a button. The portal will open when it is pressed.